Welcome to the 100-Mile Checklist, your comprehensive guide to maintaining and prolonging the lifespan of your beloved e-bike. As e-bike enthusiasts ourselves, we understand the importance of proper care and upkeep to ensure optimal performance and longevity. In this blog, we will share essential tips, insights, and best practices to help you become a savvy e-bike owner, allowing you to embark on many more thrilling journeys and adventures with confidence.

Table of Contents

Main Electronic Components

• Battery
• Motor
• Error Codes

Other Electronic Components

• Pedal Assist
• Display
• Cotroller

Mechanical Components

• The Frame
• The Fork
• Brakes
• The Wheels
• The Drivetrain
• The Pedals

Main Electronice Components

Battery

Battery Maintenance

• If you know you won’t be using the battery for more than a few days, keep it charged at about 75% capacity. At 75%, the battery will degrade less than at higher charge levels.
• Periodically check your battery's charge level once a month and charge it up to 75% .
• Store the battery indoors in a dry space, away from heat or flame sources, and out of direct sunlight.

Charging

• The battery can be charged while it is attached or detached to the e-bike. (You can remove the battery by inserting the key into the lock on the side face of the battery slide. To lock the battery, insert the key into the lock on the side face of the battery slide.)
• Use the original charger to charge the battery.
• Only charge the battery indoors in dry spaces which are not excessively hot or cold.
• Ensure there is no dirt or debris nearby when using the charger. Keep the charging port clean and dry. Wipe the dust around it periodically.
• When charging the battery, first connect the charger and the battery end, and then plug the charger into power.
• The light on the charger will be red when the battery is charging and will turn green when charging has finished.
• Avoid leaving the charger plugged in when the battery is fully charged. 8. Do not charge the battery if you notice the battery is damaged, excessively hot, leaking, smelly, or discolored.
• Charging the battery should take approximately 4-6 hours if the battery is mostly empty.
• Battery charging times may increase with battery age and usage.

Safty

• DO NOT submerge the battery in a liquid of any kind.
• DO NOTuse any metal to touch the charging port, that will cause a short-circuit.
• Turn off the battery when not in use and before removing it from the e-bike.
• Only grab the charger by the plug and not the cable when plugging and unplugging from the wall.
• If the battery has trouble charging, discontinue charging and contact eAhora immediately.

Note: Lithium-Ion batteries can be dangerous. Take care when using and charging your battery. Failure to follow the above guidelines could result in damage to property and/or serious injury. Contact eAhora immediately if you have any questions regarding battery safety.

Motor

7 Signs Your Motor Needs Maintaining

Dirt Build Up

To maintain the integrity of your e-bike motor, a visual inspection serves as a fundamental starting point. While manufacturers ensure effective sealing, the possibility of dust, dirt, or moisture infiltrating the motor housing cannot be completely ruled out. By conducting regular inspections, you can proactively identify and address any potential threats before they impact the motor's functionality.

Preventing Dirt and Moisture Buildup: Essential Measures for Protection

Removal of Plastic Outer Covers: We recommend removing the plastic outer covers of your e-bike motor to allow access for thorough inspection and maintenance. This provides an opportunity to scrutinize the motor housing for any signs of debris or obstructions that may hinder optimal performance.

Clearance of Drain Holes: Pay close attention to the drain holes situated within the motor housing. These vital openings facilitate the drainage of water and prevent the accumulation of moisture. Ensuring these drain holes remain clear through suitable methods or tools is crucial in averting potential damage caused by moisture buildup.

Examination of Connections: Take a moment to inspect the connections of your e-bike motor, particularly focusing on areas where wires and cables are attached. It is important to verify that these connections are dry, devoid of rust, and exhibit no signs of potential issues. Timely attention to any corrosion or loose connections helps maintain the efficiency and reliability of your e-bike motor.

 

Increased Motor Noise

Motor noise can serve as an indicator of potential problems within your system. By ensuring a smooth and quiet operation without any creaking or grinding sounds, you can maintain optimal performance. We also suggest a practical method of listening specifically for motor noises by temporarily removing the chain from the chainring and focusing on the sound produced while spinning the cranks.

To accurately assess motor noises, we recommend the following steps:

Remove the Chain from the ChainRing: Temporarily detach the chain from the chainring to isolate the motor's sound from other drive train-related noises.

Spin the Cranks: With the chain removed, manually spin the cranks while paying close attention to the sound emitted. By doing so, you can focus solely on the motor's noise profile and identify any anomalies that might require attention.

Monitoring motor noise levels is an essential practice in ensuring the optimal performance of your system. By taking note of any deviations from the baseline noise profile and addressing them promptly, you can maintain a smooth and efficient operation. Remember to listen for any creaking or grinding noises while spinning the cranks with the chain removed, as this enables you to isolate and evaluate the specific sounds produced by the motor.

 

Water Ingress

Maintaining a watchful eye for rust is of utmost importance to prevent potential problems that may arise. When it comes to safeguarding the integrity of your system, being vigilant about rust-related concerns is crucial. The following indicators may point towards potential issues:

Orange Staining: The presence of orange stains on various components, including the motor shaft, should be regarded as a warning sign. Rust formation can compromise the structural integrity of these components, leading to performance degradation or even mechanical failure.

Orange Running Water: If you notice orange-colored running water emanating from areas such as the motor shaft, it is essential to address this issue promptly. This discoloration could be an indication of rust particles being washed away by water, suggesting the presence of corrosion and potential damage.

Maintaining a proactive stance against rust-related issues is paramount in ensuring the longevity and safety of your equipment. By promptly identifying signs of rust, such as orange staining or the presence of orange-colored running water, you can effectively address potential problems before they escalate. Remember that water and electricity are an incompatible mix, emphasizing the need for caution during washing and immediate investigation of leaks.

 

Loose Motor Bolts

Dealing with a creaking e-bike can be a frustrating experience, and the source of the noise can stem from various parts of the bike.It is crucial to ensure that motor mounting bolts are tightened according to the manufacturer's recommended settings, as loose bolts can cause the motor to shift within the bike frame. Additionally, we recommend inspecting other critical areas such as crank bolts and chainring bolts, ensuring that all fastenings are secure and properly tightened:

To address creaking noises and promote a smooth riding experience, we recommend the following steps:

Regular Bolt Inspection: Periodically inspect all bolts pertaining to the motor, crank arms, chainring, and other critical areas of your e-bike. Ensure that they are tightened according to the manufacturer's recommended torque settings.

Proper Torquing: Utilize an appropriate torque wrench to accurately tighten each bolt to the specified torque values. This helps avoid over-tightening or under-tightening, ensuring optimal performance and minimizing the risk of creaking noises.

 

Motor Malfunctions

A motor malfunction in your e-bike can result in the complete inability of the motor system to engage, leaving you without any assistance during your rides. Alternatively, you may experience intermittent assistance, characterized by sporadic bursts of assistance or unexpected surges. While a slight motor overrun after pedalling may be considered normal, prolonged surging after ceasing pedalling could indicate an underlying problem.

To address motor malfunctions and ensure consistent and reliable e-bike assistance, we recommend the following steps:

Diagnostic Evaluation: If you encounter a complete motor failure or experience intermittent assistance, it is crucial to have your e-bike professionally evaluated. Consult an authorized technician or contact the manufacturer's support team for diagnostic assistance.

Regular Maintenance: To prevent motor malfunctions and prolong the lifespan of your e-bike, adhere to regular maintenance schedules. This includes routine inspections, cleaning, and lubrication of motor components, as well as checking for any loose connections or abnormal wear and tear.

Professional Repairs: If a motor malfunction is identified, ensure that repairs are carried out by qualified professionals using genuine parts. Attempting DIY repairs may further exacerbate the issue or void any existing warranties.

 

Motor Bearings

Bearing wear in the motor can lead to several negative effects, including compromised stability and decreased performance. By conducting a thorough examination of the crank arms, you can identify any excessive movement that may indicate wear or potential issues with the bearings.

Checking for Excessive Movement

We can tart by securely holding the crank arms near the bottom bracket area. Apply a gentle side-to-side pull and exert a careful but deliberate sideways force on the crank arms, observing any movement within the motor assembly.

A properly functioning motor should exhibit minimal to no movement in the crank arms during this examination. Any noticeable play or looseness may indicate bearing wear or other related concerns.

If you hear some noises in your motor, it's better to take your bike to local bike store for maintenance before it's too late!

 

Resistance

Resistance within the e-bike system can serve as a telltale sign of a possible motor problem. This resistance may manifest when backpedalling, with the crank arms exhibiting an unusually resistant spin. Additionally, while pedalling forward, you may experience heightened resistance within the system itself. Such symptoms can be indicative of bearing or drive-train issues. To accurately pinpoint the source of the problem, it is essential to isolate the chain from the chainring and assess whether the resistance persists solely within the motor.

Separating the chain from the chainring and assessing whether the resistance persists solely within the motor will help distinguish motor-related issues from drive-train-related concerns. If motor-related resistance is confirmed, seeking professional evaluation and practicing systematic maintenance will aid in addressing and resolving the underlying motor problems.

 

Eahora Error Codes

When your system displays an error code, it signifies the presence of an underlying problem within your e-bike. Followings are Error Codes may appear on Eahora e-bikes and what they indicate:

E00 Normal

E06 Battery Under Voltage

E07 Motor Abnormality

E08 Throttle Abnormality

E09 Controller Abnormality

E10 Abnormal Communication Reception

E11 Abnormal Communication Transmission

E21 Over Current Protection

E22 Fault with the Throttle

E23 Fault with Motor Phase Wire

E24 Fault with Motor Hall Sensor Indise

E25 Fault with Brake Sensor

E30 Communication Fault

Solution:

1. Check if the wiring inside the controller are tight. If it is loose, tighten them.
2. Check if the motor connector wire is damaged.
3. Unplug and motor connector and re-plug it, restart the display to see if the error code is still there.
4. Unplug test(especially for E25): Unplug the left and right brake wires respectively and see which side of the code you pull and the wrong code will disappear. And find customer service with a picture or a video.
5. If the error code is still there after above 4 steps, do the battery and charger voltage test. Find Eahora customer service(service@eahoraebike.com)with a videos that can demonstrating your problem and the two test results. So that our technician can better help confirm the issue and offer the matched solution asap.
6. Battery voltage test.
7. Charger voltage test.

Other Electronic Components

Pedal Assist

Pedal Assist is devided into Speed Sensor and Torque Sensor.

It's best as long as we can make sure they are clean.

 

Display

What can we do if our display can't be powered on?

The following 3 steps may help you a lot:

Step 1: Battery Check

The first step in troubleshooting your e-bike's display is to ensure that the battery is properly inserted. While this may seem like a basic step, it is important to start with the fundamentals before moving on to more advanced troubleshooting techniques. Make sure your battery is fully charged and securely reseated in its designated slot. Once these steps are completed, attempt to power up the display and observe if it functions properly.

Step 2: Key Inspection

Many e-bikes utilize keys, primarily for releasing the battery from the bike. However, in certain cases, the key may need to be turned to the "on" position to activate the battery. Check if your e-bike requires the key to be turned on, and if so, ensure that it is correctly positioned. Test the display again to verify if it powers on after turning the key to the appropriate mode.

Step 3: Cable Examination

Thoroughly examine the cables connected to your e-bike's display. Follow each wire from the display unit down to its respective connection point and ensure that all cables are securely plugged in. By verifying the proper connection of each cable, you can eliminate any potential issues stemming from loose connections. Remember to confirm that the battery is operational, fully charged, seated correctly, the key is in the on position, and all cords are adequately powered.

 

Controller

Maintaining e-bike controllers is crucial for the smooth functioning of your electric bike. A variety of controllers are available, including those controlled by iPhones or external controllers that use wired LCD inputs. Regardless of the type of controller you have, they play a vital role in controlling the essential functions of your e-bike. However, installing and navigating these controllers can be challenging, as they often lack clear instructions. Thankfully, there is a wealth of information available online to assist you.

Controllers vary in size, power, and the number of functions they can control. When purchasing a kit, it is essential to ensure that the controller's amperage matches your motor's power and your battery's BMS system. Some kits may not provide a powerful enough controller to fully optimize your motor's capabilities. Additionally, controllers often include extra connections for features like lights or cruise control, which may not be necessary for your e-bike.

You may be wondering if it is possible to use controllers without connecting certain functions like brakes or pedal assist, and the answer is yes. While each controller can handle multiple functions on your e-bike, the primary connections include the battery, motor, throttle, and LED or LCD display. Controllers offer various types of connections, from quick connect options to direct wiring. Personally, I prefer quick connections when available due to their ease of installation and waterproof capabilities. However, it is important to ensure a secure and tight connection to prevent any issues.

When it comes to battery connectors, there are several options available, including hand-wiring connections or using a preferred quick connect. The power plug connection is my preferred choice as it provides easy usage and creates a reliable connection every time.

Most conversion kits come with a set of brakes, which can be useful, especially for beginners. Actuating the brake lever not only engages the brake but also cuts off the motor, enhancing safety. Additionally, many controllers feature a pedal assist function, which is highly beneficial for e-bike riders. However, newer bikes may have limited space on the crank arm to attach the sensor and magnet. In such cases, achieving effective pedal assist can be achieved by combining throttle application with pedalling.

Hope the above content can help you with your controller maintenance.

 

Mechanical Components

The Frame

Frame Inspection

Check these areas for wear and tear:

• The bottom surface of the head tube
• Top tube
• The joint between the top tube and the seat tube
• The chainrings on our crank

 

The Bolts - greasing, fastening

To ensure proper maintenance of your e-bike's bolts, follow these steps:

Begin by unthreading the bolt that has been in use for an extended period and appears rusty.

Apply a small amount of multi-purpose grease to the clean threads of the bolts.

Carefully fasten the bolts without over tightening them, preferably once a year.

Loose bolts can cause the derailleur hanger to move and negatively impact shifting performance.

Regularly clean and grease your bolts, ideally once a year, to prevent serious issues like thread looseness on the frame.

 

The Seatpost Clamp

To check and maintain the seatpost clamp, follow these steps:

Ensure that the seatpost is fastened securely. If it is not tightened sufficiently, the seatpost may slip down while riding. However, overtightening can damage the frame or the seatpost.

Examine the bolt for cleanliness. It is important to have a clean bolt and surface between the seatpost clamp and the frame.

If your frame is not made of carbon, applying a small amount of grease is recommended. This will facilitate easier fastening of the seatpost clamp around the frame.

To fasten the seatpost clamp properly, use a torque wrench or seek assistance at your local store. Hand-tightening alone can be challenging.

For quick-release seatpost clamps, ensure that the bolts are clean.

By following these steps, you can effectively check and maintain your seatpost clamp.

 

The Headset - Cleaning, assembly

What we need to pay close attention to is the two bearings and the three bolts here as circled.

To properly maintain the headset, follow these steps:

1. Unscrew the bolts and disassemble the headset.
2. Identify the top bearings, lower bearings, spacers, top cup with the bolt.
3. Clean all components using a brush, rug, or degreaser

The Fork

For basic maintenance of the suspension fork, follow these steps:

Apply a rubber-friendly lubricant sparingly to the upper leg.

Work the fork to distribute the lubricant evenly on the seal and upper legs.

Use a dry clothes to clean any excess lubricant.

Allow the lubricant to sit overnight and clean it the following morning.

To clean your fork, use a brush.

Brakes

When it comes to maintaining the improved speed and performance of your e-bike over time, it is crucial to pay attention to the braking system. Here are some essential tips for maintaining your e-bike's disc brakes.

Disc Brakes

1. Reach Adjustment (Levers)

- Adjust the position of the lever to the most comfortable position for you.

2. Callipers Adjustment (Eliminating Rubbing)

- If you notice the disc rotor rubbing against the braking path, follow these steps:

1. Loosen the two bolts that assemble the calliper brake slightly, allowing the calliper to move.
2. Squeeze the braking lever to center the calliper brake.
3. Tighten the bolts to secure the calliper brake in place.
4. Positioning the Disc Brake Rotor

- To ensure proper visibility of the disc brake rotor's position, you can use a white paper or a flashlight.

4. Other Considerations

- If the rotor is out of true, it may require truing instead of calliper adjustment.

- Pay attention to your quick release or thru-axle. Consistently applying the same force when removing and reinstalling the wheel will minimize the risk of rubbing.

Replacing the Brake Pads

When it comes to replacing your brake pads, it is important to choose the right ones for your brake model and riding style. Follow these steps:

1. Remove the wheel before replacing the pads.
2. Check for any specific instructions or bolts on Shimano callipers.
3. Clean and degrease the calliper before installing the new brake pads.
4. Avoid squeezing the braking lever when the pads are removed or the wheel is not in place to prevent oil leaks and potential damage.

Bent Brake Rotors - Common Causes

Bent brake rotors can impact the performance of your e-bike's braking system. Here are three common causes:

1. Overheating.
2. Improper use of mounting bolts.
3. Leaning the bike during transportation, which can cause damage to the disc brake rotor.

Turning the Rotors

If your brake rotors become warped or uneven, they may require turning for proper alignment. Seek professional assistance or follow manufacturer guidelines for this procedure.

By following these guidelines for e-bike brake maintenance, you can ensure optimal performance and safety while riding your electric bike.

V-Brakes

Operated by a cable housed within, the V-Brake's performance largely depends on the cleanliness of both the housing and cable, as well as the regular maintenance of the pivots. To ensure optimum functioning:

1. Inspection: Start by checking the condition of the cable. If it is in bad shape, it is advisable to replace it. However, if the cable is in good condition, clean it thoroughly and apply some lubricant before reusing it. Also, ensure that the pivot is clean, free from rust and dirt, and properly greased.
2. Maintenance of Brake Pads: The key rule to remember is to brake using the compound, not the metal part, of your braking pads. By filing the braking pads clean, you will reduce their overall lifespan while significantly extending the life of your wheels. Clean brake pads provide better braking and eliminate the metallic sound commonly associated with braking.

3. Replacing the pads:

Begin by pulling off the little pin.

Slide out the old brake pad.

Insert the new pad and secure it with the pin.

Note:

• If your E-bike does not have a cartridge system, you will need to replace the entire brake assembly.
• When removing the braking pads, be cautious of the spacers that might fall to the floor. Ensure that you put them back in the same order as they were before.

4. Adjusting the V-Brakes

Length of the housing:

- Make sure the part between the two arms of the V-brake is straight.

- If it is being pushed upwards, the housing is too long, and vice versa.

Cable tension:

- While unthreading, the braking pads approach the rim.

- While threading, you increase the distance between the braking pads.

Mounting Bolts:

- These bolts allow you to adjust the gap between the brake pads and the rim.

- Increase or decrease the gap as necessary.

Wheel Alignment:

- The wheel should be in line with the fork or frame.

- Adjust the screws accordingly:

- While unthreading, lower and decrease the tension of the spring (pads will pull left).

- While threading, increase tension in the spring.

- Ensure the rim is centered by maintaining an even distance between the brake pads and the rim on both sides.

Braking Pads Adjustment:

1. For reduced squeaking noise, adjust the rear pads slightly further from the rim than the front pads.

- Place a piece of rubber behind the rear brake pads on both sides to achieve this.

Remember to align and fasten the bolts securely to complete the process.

Conclusion:

By following the above steps, you can effectively adjust and replace the pads of your E-bike V-brake. Proper maintenance of your E-bike's braking system is crucial for your safety and riding experience. Keep your E-bike in top shape and enjoy a smooth ride!

The Calliper Brakes

How to Adjust and Replace the Pads of Calliper Brakes

Step 1: Ensure Proper Wheel Alignment

First and foremost, it is crucial to position the wheel centrally between the two braking pads. If required, readjust the entire calliper brake mechanism.

Step 2: Loosen the Bolt

Begin by unthreading the bolt that secures the calliper brake. This will allow you to move the calliper brake and find the optimal position for the braking pads.

Step 3: Align the Pads

Locate the bolt that fastens the braking pads to the calliper brake. We highly recommend aligning the pads parallel to the rim to ensure effective braking performance.

Step 4: Adjust the Barrel

Similar to adjusting a V-Brake, utilize the barrel adjuster to bring both braking pads into contact with the rim. This will optimize braking efficiency and control.

Step 5: Secure the Bolt

Once you have achieved the desired pad position, tighten the bolt to securely hold the braking pads in place.

Step 6: Fine-Tune with Barrel Adjuster

To make any necessary fine adjustments, carefully loosen the barrel adjuster until the desired braking performance is achieved.

By following these steps, you will be able to effectively adjust and replace the pads of your E-bike's calliper brakes.

The Wheels

Inspecting and Removing the Wheel

Inspecting the rim, the spokes and hubs

When examining the rim, spokes, and hubs of an e-bike, there are several crucial steps to follow. Firstly, you'll want to check if the rim is true by looking for any movement when spinning the wheel. Additionally, it's recommended to utilize the V-Brake as a helpful reference, although using your thumb or palm is also effective.

Next, pay attention to the tension of the different spokes. Are they evenly tightened or are some spokes loose while others are overly tight? This evaluation can be done by hand, ensuring that there are no excessively tight or loose spokes for optimal wheel performance.

Moving on to the braking surface, you can feel it with your fingers or utilize a calliper to determine if the rim is even and straight. This step will provide valuable insights into the condition of the braking surface.

Finally, inspect the bearings in the hub. Hold the bike and gently rock the wheel from side to side to detect any movement, which could indicate play in the bearings. Additionally, spinning the wheel will give you an idea of bearing cleanliness based on how long it spins. Don't forget to listen for any unusual noises, which may be caused by dirt between the bearings or bearings that are clean but dry.

Removing the Wheel - Quick Release

When it comes to removing the wheel of an e-bike equipped with quick release, it is crucial to consider the type of brakes present.

For disc brakes, start by unthreading the bolts at the axle or simply open the quick-release. To use the quick-release, open the right lever and turn the nut 2.5 times to remove the wheel.

For V-Brakes or any other type of calliper brakes, it is essential to open them to free the tire for removal. Remember to close the brakes after putting the wheel back on the bike.

removing the rear wheel (derailleur with the clutch)

To successfully remove the rear wheel of an e-bike equipped with a derailleur clutch, follow these steps:

• Release the rear brake.
• Shift the chain to the smallest sprocket both at the rear and the front, ensuring there is no tension on the chain.
• If your e-bike features a modern Shimano trailer with a special clutch, remember to switch the gold lever from the "on" to the "off" position. This will simplify the wheel removal process. Once the wheel is back in place, switch the lever to the "on" position.
• The derailleur incorporates an additional system with a button. Open up the derailleur and press the button.

With these steps, you will be able to remove the rear wheel of an e-bike equipped with a derailleur clutch efficiently.

Note: Always exercise caution and consult the manufacturer's instructions before attempting any maintenance or repair tasks.

Removing the tire, replacing the inner tube

Step 1: Valve Removal

- Start by removing the valve cap.

- Unscrew the nut securing the valve to the rim.

- Take off any extra protection and release the air from the tire.

Step 2: Accessing the Inner Tube

- Use appropriate tire levers instead of spoons or metal screwdrivers to prevent damage.

- The original tire levers are recommended for their effectiveness and safety.

- If necessary, use a longer lever for tight tire removal, although this is rarely required.

- Typically, two smaller levers are sufficient. One side of the tire lever should scoop up the bead while avoiding the inner tube. The other side usually features a hook for the spokes.

Step 3: Removing the Bead

- Position the hook of the tire lever and hold it securely.

- Use both hands to gently remove the bead around the valve area.

- To remove the inner tube, start at the opposite side and carefully pull it out.

- Remember a few crucial steps to prevent a flat or unbalanced tire:

- Slightly inflate the inner tube to restore its shape.

Step 4: Tire Alignment and Inner Tube Installation

- Determine the desired direction for your tire's rotation, especially for directional tires. Once we know in what direction our tire should go and we can put one bead of the tire into the rim.

- Also, align any relevant graphics on the tire with the valve position for future reference is a good idea.

- Insert the inner tube, ensuring the valve is perfectly straight.

Step 5: Tire Reassembly

- Put one bead of the tire back into the rim.

- Apply slight pressure to the valve while inflating the tire.

- Align the tire evenly along the entire length of the bead.

- Finally, refer to the recommended air pressure range and inflate the tire accordingly.

Remember to follow these steps carefully to safely remove an e-bike's tire and replace the inner tube.

Air pressure inspection

Why is regular monitoring of tire air pressure important for road bikes and mountain bikes?

Regular inspection of air pressure is crucial for multiple reasons. Firstly, it significantly impacts safety, traction, speed, efficiency, puncture resistance, and overall comfort. By maintaining optimal air pressure, you enhance both your riding experience and the lifespan of your tires.

What is the best air pressure for my mountain bike and road bike?

Determining the ideal air pressure for your mountain bike and road bike can vary based on different factors. These factors include your weight, tire size, wheel size, and the type of terrain you plan to ride through. Generally, the following guidelines apply:

Find out whether the air pressure on your e-bike isn't too low

Two basic rules:

For mountain bikes with inner tubes, aim for around 3 bars (approximately).

For road bikes with inner tubes, aim for around 7 bars (approximately).

To verify whether your air pressure is appropriate, you can perform a quick test. Find an obstacle and apply pressure to the wheel of your bike using the weight of your body against this obstacle. If you can easily push the wheel throughout the entire motion, feeling the edge of the rim stop against the obstacle, then the air pressure is too low. Riding with insufficient air pressure increases the risk of pinch flats or damage to your tire, inner tube, or rim. Stay safe and maintain the recommended air pressure to ensure optimal performance during your rides.

The hubs - Cleaning, greasing, assembly

The process of cleaning, greasing, and assembling your e-bike's hubs is essential for maintaining optimal performance.

Followings are the steps:

1. Start on the non-drive (left) side of the bike. Gently remove the cap from the axle, ensuring a proper grip. Determine the appropriate wrench to use for this task.

2. Set aside the bolts one by one, keeping track of their order for reassembly. Take care to gather all the loose balls and place them in a safe spot.

3. Begin the cleaning process using at least two separate cloths. One cloth should be designated for dirty components, while the other should be clean. Carefully clean each part, placing them on a clean cloth or table to avoid any debris or sand particles.

4. Once the cleaning is complete, it's time to reassemble the hub. Start by greasing the bearing on the drive side, using grease specifically designed for bearings. Apply enough grease for the balls to stick securely.

5. Install the axle, ensuring a proper fit. Repeat the same process on the other side of the hub, following the same steps for greasing and installation.

6. Ensure there is no play or movement in the hub.

 

Truing the wheel

Truing the wheel requires following some basic principles to fix minor problems. When the rim is shifting to one side, increasing the tension on the spoke on the opposite side will help pull the rim back into place. Simultaneously, this action will decrease the tension on the same side.

The Drivetrain

Adjusting the Rear & Front Derailleur

When it comes to maintaining and fine-tuning your E-bike's rear derailleur, there are a few key steps to follow.

1. Understanding Limiting Screws:

The first step is to familiarize yourself with the limiting screws. These screws control the movement range of your derailleur. Make sure to identify which screw corresponds to the highest gear and which one corresponds to the lowest gear. On some derailleurs, you may find the symbols H and L corresponding to these screws.

2. Adjusting the H Screw:

To adjust the highest gear, you will need to thread the H (high) screw. This will inwardly move the derailleur, allowing for smoother shifting to lower gears. Ensure that the derailleur doesn't go beyond the frame and the cassette during this adjustment.

3. Adjusting the L Screw:

If you are experiencing difficulty shifting from the second gear to the first gear, it's time to adjust the lowest gear. To do this, unthread the L (low) screw. If the chain tends to slip between the cassette and the spokes, thread the L screw in slightly to prevent this.

Advice:

After completing the adjustments and mounting the cable, it's a good idea to fine-tune the gear shifting. Ensure that changing gears from the lowest to the highest is smooth, while also preventing the chain from going beyond the highest gear.

4. Fastening the Cable and Adjusting Tension:

Before fastening the cable, check your barrel adjusters. These adjusters can be located at the shifter or rear derailleur, or both. Set them(as the picture showed) to the zero position and unthread them by two turns. This will allow you to adjust the cable tension from both sides, increasing or decreasing it as needed.

5. Secure the cable on the derailleur side, and adjust the tension by pulling the cable slightly and fastening the bolt in place. Remember, unthreading the barrel adjuster increases the cable tension, making it easier for the derailleur to shift from higher to lower gears. Conversely, threading it in decreases cable tension, aiding smooth shifting from lower to higher gears.

 

 

Final Adjustments:
6. To complete the process, make sure to adjust the upper pulley of the rear derailleur and the cassette. Unthreading the bolt lowers the distance between the pulley and the cassette, while threading it increases this distance.

How to adjust and what should be the distance?

1. Pay attention to the manual, different models of the derailleurs will require different distances.
2. Check out whether the gear change from the second to the first gear doesn't feel stiff and we recommend setting the distance as small as possible as long as it's not stiff.

The Derailleur Capacity

What is Derailleur Capacity

When it comes to the derailleur capacity of an e-bike, understanding its importance is key. In simple terms, the capacity refers to the distance between the two pulleys or the length of the derailleur cage. This cage can be categorized as short, medium, or long. The capacity of the front derailleur is primarily focused on shaping its plates. This allows the derailleur to smoothly transition between different chainrings, including double or triple setups.

Why Different Capacities are Needed for Different Drivetrains?

To unravel the need for different capacities, let's examine the rear derailleur cage and observe what happens while shifting gears.

Maintaining Chain Tension

The cage of the derailleur plays a crucial role in maintaining chain tension. As the chain moves through smaller sprockets, it covers a shorter distance, requiring the cage to adjust accordingly. On the other hand, shifting onto bigger chainrings and rear sprockets makes the chain travel a longer distance, necessitating further adjustments from the derailleur cage.

Impact of Inadequate Capacities

If the rear derailleur has a low capacity, it means fitting a short cage instead of a long one. Consequently, the chain becomes extremely tight and may even get stuck on the largest rear sprocket. Matching the capacity with the entire range of gears in the drivetrain is crucial to avoid such issues.

No Consequences of High Capacities

On the other hand, having a rear derailleur with excessive capacity doesn't pose any functional problems. Although it results in a longer chain and a slightly heavier derailleur, it can still maintain chain tension. Therefore, the key concern lies in avoiding a capacity that is too low.

Front Derailleur Capacity - Shaping the Plates

The maximum capacity of the front derailleur is not tied to chain length or tension. Instead, it focuses on the shaping of plates, enabling the derailleur to effectively handle double or triple chainring setups.

Calculating the Derailleur Capacities for Your Drivetrain

To determine the necessary derailleur capacities for your specific drivetrain, follow these steps:

1. Find the difference between the largest and smallest gears.
2. Determine the gearing range on your cassette.

40-22=18

By understanding and matching the derailleur capacities to your drivetrain, you can ensure optimal performance and smooth shifting on your e-bike.

The Cassette - Removal and Installation

To begin the process of removing the cassette, the first step is to remove the quick release. This requires a few tools. One of these tools is a special tool that fits the lock ring on the cassette. Another tool that is needed is a wrench, which can be used to hold the lock ring while unthreading it. Alternatively, a dedicated tool with a center can be purchased to simplify this task.

There is one challenge that may arise during the process. As the lock ring is being unthreaded, the cassette will also begin to turn. To safely address this, another tool called a chain whip is required. Using the chain whip ensures that the task can be completed safely and effectively. It is important not to attempt to hold the cassette with bare hands, as it can be sharp and potentially cause harm.

It is worth noting that there is an exception for Shimano and SRAM cassettes. The SRAM cassette, specifically, will have only ten teeth on the smallest sprocket. This type of cassette requires a special freehub body called XD.

Inspecting the Drivetrain, When to Replace the Chain

One common question often arises regarding the chain replacement on a bike. Does one replace the chain when it starts slipping through some of the sprockets on the cassette? The answer is a resounding no, as that would indicate an extremely deteriorated condition, necessitating the replacement of numerous drivetrain components.

To address this concern, a useful tool called the Chain Wear Indicator comes into play. Checking whether the other arm can fit in between the rollers of the chain determines the condition — if it cannot fit, the chain is in very good condition.

However, in emergency situations where a Chain Wear Indicator is not available, pulling the chain away from the chainrings on the crankset can offer insight. If it moves very little, it indicates that the chain is in excellent condition.

Removing and Installing the Chain (the quick link and the connecting pin method)

Removing and installing a bicycle chain involves specific steps that need to be followed carefully for smooth operation and optimal performance.

1. Chain with a Quick Link:

- Identify the link that appears different from the rest of the chain.

- Detach it first from the chainring.

- Squeeze the links against each other.

- Take note of the direction in which the chain will move during pedalling.

(Alternative: Consider using a suitable device for this step)

2. Utilize the chain tool or chain breaker:

- Use a dedicated tool called a chain tool or chain breaker to proceed.

Installing a New Chain:

1. Assess the Chain:

- Determine if the new chain is directional (looking different on both sides).

- Adjust the chain to the appropriate length.

- Identify the desired pin for extraction.

- Utilize the chain breaker for this task.

- Note: Extracted pins must not be reused.

- Consult the manufacturer's manual for proper guidance.

- Connect the chain using the guide pin as instructed in the manual.

- Employ the same tool used for removal during installation.

Verify Operation:

- After installation, check if the chain is functioning correctly.

1. - Ensure that it is not too stiff but has a slight looseness.
2. - In case of any issues, gently move it around for potential resolution.

The Proper Chain Length

Determining the ideal chain length for your e-bike is crucial in ensuring optimal performance and longevity. Here are a few pointers to help guide you:

1. Is the chain too long?

If the chain seems excessively long, follow these steps:

- Shift the chain down to the smallest sprocket in the rear and, if applicable, on the front gears as well.

- Ensure that the derailleur applies adequate tension to the chain.

- Verify that the chain runs straight from the bottom pulley to the chainring, without touching any other parts of the derailleur.

2. Is the chain too short?

If the chain appears too short, perform these steps:

- Shift the chain to the largest sprocket.

- Observe the rear derailleur cage.

- If the cage still has room for movement and there is a noticeable band on the top pulley, this indicates a suitable chain length.

The Pedals

Removal and Installation

Tools Needed:

15mm wrench: This wrench will be used to loosen and tighten the pedal's axle nut.

Removal Process:

Before you start, ensure that you have the proper tool at hand and a suitable workspace. Here is a step-by-step guide on how to remove the pedals:

1. Locate the correct side: Identify which side of the e-bike pedal you want to remove, as there is a left and right side with different threading.
2. Position the wrench: Place the 15mm wrench securely on the axle nut of the pedal.
3. Unthread the pedal: Apply force in a counter-clockwise motion to unthread the pedal from the crank arm. Remember, the left pedal has reverse threading, so you will need to turn it clockwise to remove.

Installation Process:

Once you have successfully removed the pedals from your e-bike, it's time to install them back on. Follow these steps carefully:

1. Prepare the pedal: Before installation, it is advisable to apply a small amount of grease onto the pedal's threads. This will help in ease of installation and prevent corrosion.

2. Identify the correct side: Ensure you identify the correct side of the pedal that matches the crank arm.
3. Thread the pedal: Place the pedal on the crank arm and start threading it by turning it clockwise. Again, remember that the left pedal has reverse threading, so it should be turned counter-clockwise.

Make sure the pedal is tightened securely but avoid overtightening, as this could damage the threads or the crank arm. Repeat the process for the other pedal.

By following this comprehensive 100 miles maintenance checklist, you can ensure that your e-bike remains in optimal condition, prolonging its lifespan and enhancing your riding experience. However, keep in mind that the recommendations may vary depending on factors such as manufacturer guidelines and individual riding conditions. Always refer to your e-bike's user manual and consult professional mechanics for specific maintenance instructions.

If you have any further questions or concerns, please do not hesitate to reach out our customer service service@eahoratbike.com. Pictures and videos are necessarily required for our technicians to examine the specific problem and offer a proper solution. We are committed to ensuring your satisfaction with our products and services.