VIVI MT26G Electric Bike Common Problems and Troubleshooting

Thank you for choosing the VIVI MT26G Electric Bike! This article aims to address common problems and provide troubleshooting tips specifically for the VIVI MT26G Electric Bike model. VIVI is a renowned manufacturer in the electric bike industry, known for their commitment to quality and innovative designs.

VIVI MT26G Electric Bike Overview

The VIVI MT26G Electric Bike is a powerful and versatile electric city bike designed for adults. With its upgraded 500W motor and 48V Lithium-Ion battery, it offers a strong power output that provides more freedom and fun during your rides. Perfect for daily commuting and holiday travel, this bike eliminates the hassle of frequent charging.

Product Details
Bike Model	VIVI MT26G Electric Bike
Motor Power	500W
Charge Voltage	110V
Bike Frame Material	Carbon Steel
Brake System	Double disc brakes
Number of Speeds	7 Speed
Suspension System	Front suspension
Lithium Battery	48V/7.8Ah removable
Pure Electric Cruising Range	22-28 miles / 35-45 km
Assist Mode Cruising Range	32-50 miles / 50-80 km
Charging Time	About 5 hours (unplug the charging cable 30 minutes after the green light turns on)

Causes of Common Problems with the VIVI MT26G Electric Bike

This section will address various common problems that users may encounter with the VIVI MT26G Electric Bike and provide troubleshooting solutions for each issue.

1. Battery Not Charging

Description: The battery of the VIVI MT26G Electric Bike is not charging.

Cause: Possible causes include a faulty charging cable, loose connection, or a defective battery.

Troubleshooting:

• Check the charging cable for any damages and ensure it is properly connected.
• Try using a different power outlet or charging adapter.
• Contact customer service for assistance or battery replacement if necessary.

2. Motor Not Functioning

Description: The motor of the VIVI MT26G Electric Bike is not functioning.

Cause: This can be caused by a wiring issue, motor controller malfunction, or a faulty motor.

Troubleshooting:

• Check the wiring connections to ensure they are secure.
• Inspect the motor controller for any visible damages or loose connections.
• Contact customer service for further diagnosis and motor replacement if necessary.

3. Brake Failure

Description: The brakes on the VIVI MT26G Electric Bike are not functioning properly.

Cause: Possible causes include worn brake pads, misaligned brakes, or hydraulic system issues.

Troubleshooting:

• Check the brake pads for wear and replace if necessary.
• Adjust the brake calipers to ensure proper alignment with the brake discs.
• If the bike has a hydraulic braking system, check for any leaks and bleed the brakes if needed.

4. Gear Shifting Problems

Description: Difficulty in shifting gears on the VIVI MT26G Electric Bike.

Cause: This can be caused by misadjusted derailleurs, worn shift cables, or damaged shifters.

Troubleshooting:

• Inspect the derailleurs and ensure they are properly aligned and adjusted.
• Check the shift cables for any fraying or damage and replace if necessary.
• If the shifters are damaged, consider replacing them with new ones.

5. Tire Punctures

Description: The tires of the VIVI MT26G Electric Bike frequently get punctured.

Cause: This can be caused by sharp objects on the road, improper tire pressure, or worn-out tires.

Troubleshooting:

• Inspect the tires for any visible punctures or sharp objects embedded in them.
• Maintain proper tire pressure according to the recommended specifications.
• If the tires are excessively worn, consider replacing them with new ones.

6. Loose Handlebars

Description: The handlebars on the VIVI MT26G Electric Bike are loose and unstable.

Cause: This can be caused by loose stem bolts or a worn-out handlebar grip.

Troubleshooting:

• Tighten the stem bolts using an appropriate wrench.
• If the handlebar grip is worn, consider replacing it with a new one for better grip and stability.

7. Squeaky Pedals

Description: The pedals of the VIVI MT26G Electric Bike produce squeaking noises.

Cause: Possible causes include loose pedal threads or lack of lubrication.

Troubleshooting:

• Tighten the pedal threads securely using a pedal wrench.
• Apply lubricant to the pedal threads and contact points to reduce friction and eliminate squeaking.

8. Chain Slippage

Description: The chain on the VIVI MT26G Electric Bike slips or jumps off the gears.

Cause: This can be caused by a loose chain tension, worn-out chain, or misaligned gears.

Troubleshooting:

• Adjust the chain tension to ensure it is properly tensioned.
• If the chain is worn, consider replacing it with a new one.
• Inspect the gear alignment and adjust if necessary.

9. Loose Seat

Description: The seat of the VIVI MT26G Electric Bike is loose and moves while riding.

Cause: This can be caused by loose seat clamp bolts or a worn-out seat post.

Troubleshooting:

• Tighten the seat clamp bolts to secure the seat in place.
• If the seat post is worn, consider replacing it with a new one for better stability.

10. Headlight Malfunction

Description: The headlight on the VIVI MT26G Electric Bike is not working.

Cause: This can be caused by a loose connection, burnt-out bulb, or a faulty headlight switch.

Troubleshooting:

• Check the wiring connections to the headlight and ensure they are secure.
• Replace the headlight bulb if it is burnt out.
• If the headlight switch is faulty, consider replacing it with a new one.

11. Unresponsive Electric Assist

Description: The electric assist feature on the VIVI MT26G Electric Bike is unresponsive.

Cause: Possible causes include a dead battery, faulty motor controller, or a malfunctioning throttle.

Troubleshooting:

• Check the battery charge level and recharge if necessary.
• Inspect the motor controller for any visible damages or loose connections.
• If the throttle is not functioning, consider replacing it with a new one.

12. Uneven Braking

Description: The brakes on the VIVI MT26G Electric Bike provide uneven stopping power.

Cause: This can be caused by misaligned brake calipers or worn brake pads.

Troubleshooting:

• Adjust the brake calipers to ensure even contact with the brake discs.
• Inspect the brake pads for wear and replace if necessary.

13. Loose Fenders

Description: The fenders on the VIVI MT26G Electric Bike are loose and rattling.

Cause: This can be caused by loose mounting bolts or damaged fender brackets.

Troubleshooting:

• Tighten the fender mounting bolts to secure them in place.
• If the fender brackets are damaged, consider replacing them with new ones.

14. Inaccurate Speedometer

Description: The speedometer on the VIVI MT26G Electric Bike displays inaccurate speed readings.

Cause: This can be caused by a faulty speed sensor or magnet alignment.

Troubleshooting:

• Check the alignment of the speed sensor and magnet to ensure they are properly positioned.
• If the speed sensor is faulty, consider replacing it with a new one.

15. Loose Kickstand

Description: The kickstand on the VIVI MT26G Electric Bike is loose and unstable.

Cause: This can be caused by loose kickstand bolts or a worn-out kickstand.

Troubleshooting:

• Tighten the kickstand bolts to secure it in place.
• If the kickstand is worn, consider replacing it with a new one for better stability.

16. Noisy Chain

Description: The chain on the VIVI MT26G Electric Bike produces excessive noise while pedaling.

Cause: This can be caused by a lack of lubrication or a worn-out chain.

Troubleshooting:

• Apply lubricant to the chain to reduce friction and noise.
• If the chain is excessively worn, consider replacing it with a new one.

17. Loose Crankset

Description: The crankset on the VIVI MT26G Electric Bike is loose and wobbly.

Cause: This can be caused by loose crank bolts or a worn-out bottom bracket.

Troubleshooting:

• Tighten the crank bolts using an appropriate wrench.
• If the bottom bracket is worn, consider replacing it with a new one for better stability.

18. Unresponsive Display

Description: The display screen on the VIVI MT26G Electric Bike is unresponsive.

Cause: This can be caused by a loose connection or a faulty display unit.

Troubleshooting:

• Check the wiring connections to the display unit and ensure they are secure.
• If the display unit is faulty, consider replacing it with a new one.

19. Uncomfortable Saddle

Description: The saddle on the VIVI MT26G Electric Bike is uncomfortable for riding.

Cause: This can be caused by a poorly cushioned saddle or improper saddle adjustment.

Troubleshooting:

• Consider replacing the saddle with a more comfortable one that suits your preferences.
• Adjust the saddle position and angle to find a more comfortable riding position.

20. Loose Rack

Description: The rack on the VIVI MT26G Electric Bike is loose and rattling.

Cause: This can be caused by loose mounting bolts or a damaged rack.

Troubleshooting:

• Tighten the rack mounting bolts to secure it in place.
• If the rack is damaged, consider replacing it with a new one.

21. Unstable Suspension

Description: The suspension on the VIVI MT26G Electric Bike feels unstable or bouncy.

Cause: This can be caused by improper suspension setup or worn-out suspension components.

Troubleshooting:

• Refer to the user manual and adjust the suspension according to your weight and riding style.
• If the suspension components are worn, consider replacing them for better performance.

22. Unreliable Range

Description: The VIVI MT26G Electric Bike has an unreliable range, not meeting the specified distance.

Cause: This can be caused by various factors such as riding conditions, terrain, and battery health.

Troubleshooting:

• Ensure you are using the correct power assist levels and avoid excessive use of high power modes.
• Maintain proper tire pressure and consider optimizing your riding style for better efficiency.
• If the battery health is poor, contact customer service for battery diagnostics and possible replacement.

23. Noisy Suspension Fork

Description: The suspension fork on the VIVI MT26G Electric Bike produces unusual noises.

Cause: This can be caused by lack of lubrication, loose components, or worn-out seals.

Troubleshooting:

• Apply lubrication to the suspension fork stanchions and seals as recommended by the manufacturer.
• Check for any loose components and tighten them if necessary.
• If the fork seals are worn or damaged, consider servicing or replacing the suspension fork.

24. Loose Pedal Arms

Description: The pedal arms on the VIVI MT26G Electric Bike are loose and wobbly.

Cause: This can be caused by loose pedal arm bolts or a worn-out pedal crankset.

Troubleshooting:

• Tighten the pedal arm bolts using an appropriate wrench.
• If the pedal crankset is worn, consider replacing it with a new one for better stability.

25. Limited Water Resistance

Description: The VIVI MT26G Electric Bike has limited water resistance, making it vulnerable to water damage.

Cause: This can be caused by inadequate sealing or lack of water-resistant components.

Troubleshooting:

• Avoid riding the bike in heavy rain or through deep puddles to minimize water exposure.
• Consider applying a water-resistant coating or protective cover to vulnerable components.

VIVI MT26G Electric Bike Error Codes

Problem: Error Code E01

Description: The display screen on the VIVI MT26G Electric Bike shows error code E01.

Cause: Error code E01 indicates a communication error between the display unit and the controller.

Solution:

• Check the wiring connections between the display unit and the controller and ensure they are securely connected.
• If the connections are fine, power off the bike, wait for a few seconds, and then power it back on to reset the system.
• If the error persists, contact customer service or a professional technician for further assistance.

Problem: Error Code E02

Description: The VIVI MT26G Electric Bike displays error code E02.

Cause: Error code E02 indicates a throttle error, often caused by a faulty throttle or throttle wiring.

Solution:

• Inspect the throttle and its wiring for any visible damage or loose connections.
• If the throttle or its wiring is damaged, consider replacing them with new ones.
• If the issue persists, it is recommended to consult a professional technician for further diagnosis and repair.

Problem: Error Code E03

Description: The VIVI MT26G Electric Bike shows error code E03 on the display screen.

Cause: Error code E03 indicates a motor hall sensor error, typically caused by a malfunctioning sensor or faulty wiring.

Solution:

• Check the motor hall sensor and its wiring for any visible damage or loose connections.
• If the sensor or its wiring is damaged, consider replacing them with new ones.
• If the error persists, it is advisable to seek assistance from customer service or a professional technician.

Problem: Error Code E04

Description: The display screen on the VIVI MT26G Electric Bike displays error code E04.

Cause: Error code E04 indicates a battery communication error, often caused by a faulty battery or poor battery connection.

Solution:

• Ensure the battery is securely connected to the bike and the terminals are clean.
• If the battery is removable, remove and reinsert it to establish a proper connection.
• If the error persists, try using a different battery to determine if the issue lies with the battery itself.
• Contact customer service or a professional technician for further assistance if needed.

Problem: Error Code E05

Description: The VIVI MT26G Electric Bike shows error code E05 on the display screen.

Cause: Error code E05 indicates a motor error, typically caused by a malfunctioning motor or motor controller.

Solution:

• Check the motor and its wiring for any visible damage or loose connections.
• If the motor or its wiring is damaged, consider replacing them with new ones.
• If the error persists, it is recommended to consult a professional technician for further diagnosis and repair.

User Reviews of VIVI MT26G Electric Bike

Positive Reviews from VIVI MT26G Electric Bike Users

• Some users were satisfied with the ease of handling and maneuverability of the VIVI MT26G Electric Bike. They found it easy to keep on track and appreciated the spare battery feature.
• Users mentioned that the bike was easy to operate and had good speed. Assembly was not a problem, and the bike met their needs and was worth the price. The only complaint was regarding the hard and uncomfortable seat, which they replaced.
• A user’s son loved the bike and was very protective of it. They found it convenient to bring the bike into stores to prevent theft.
• Many users praised the VIVI MT26G Electric Bike for its comfort and suitability for individuals with specific needs. The step-through design and comfortable seat height made it ideal for those with mobility issues. The bike’s performance, stability, and shock-absorbing features were also appreciated.
• Users expressed satisfaction with the VIVI MT26G Electric Bike’s performance on various terrains. They found it enjoyable to ride, especially on hills and against the wind. The battery life and power assist feature were highly praised.
• Several users mentioned that the VIVI MT26G Electric Bike provided a smooth and effortless riding experience. They appreciated the electric assist, which made it easy to navigate around town.
• Users found the VIVI MT26G Electric Bike well-packaged upon delivery, ensuring its safe arrival. They also mentioned helpful customer service when seeking guidance on specific features or resolving logistical issues.

Negative User Reviews of the VIVI MT26G Electric Bike

• Some users expressed disappointment with the short battery life of the VIVI MT26G Electric Bike, requiring frequent recharging.
• There were complaints about the tires being prone to punctures, leading to interruptions during rides.
• Several users criticized the poor build quality of the bike, citing easily breakable components.
• Users reported that the motor performance of the VIVI MT26G Electric Bike was weak, especially when encountering even slight inclines.
• There were concerns about unreliable brakes, which compromised the safety of riding in busy areas.
• Some users mentioned abysmal customer service from the manufacturer, including unresponsiveness and slow resolutions to issues.
• A few users encountered broken packaging upon delivery, rendering the contents unusable.
• Confusing assembly instructions were mentioned by some users, making it difficult to assemble the bike.
• There were complaints about the uninspiring design of the VIVI MT26G Electric Bike, lacking unique features or style.
• Missing important parts in the package led to difficulties in fully assembling the bike.
• Users found the seat uncomfortable, particularly during longer rides, causing discomfort and pain.

All user reviews mentioned in this section are based on information available from Walmart.com.

Overall, the majority of users expressed satisfaction with the VIVI MT26G Electric Bike, praising its performance, comfort, and convenience. However, there were some negative experiences related to battery life, tire punctures, build quality, motor performance, brakes, customer service and packaging issues. Some users also had complaints about the design and uncomfortable seat of the bike.

It’s important to note that user experiences can vary, and these reviews represent a range of opinions. When considering purchasing the VIVI MT26G Electric Bike, it’s advisable to read multiple reviews from different sources, gather as much information as possible, and make an informed decision based on your personal preferences and requirements.

VIVI MT26G Electric Bike Manual

The instruction manual for the VIVI MT26G Electric Bike can be found here. It is recommended to refer to the manual for detailed information on assembly, maintenance, and troubleshooting.

VIVI MT26G Electric Bike Frequently Asked Questions

1. How do I charge the VIVI MT26G Electric Bike?

To charge the VIVI MT26G Electric Bike, follow these steps:

• Locate the charging port on the bike.
• Connect the charging cable to the charging port.
• Plug the other end of the charging cable into a power outlet.
• Ensure the charging cable is securely connected.
• Wait for the battery to charge fully as indicated by the LED lights.

2. What is the maximum speed of the VIVI MT26G Electric Bike?

The VIVI MT26G Electric Bike can reach a maximum speed of 19 mph (30 km/h).

3. How far can the VIVI MT26G Electric Bike travel on a single charge?

The range of the VIVI MT26G Electric Bike depends on the riding mode. In pure electric mode, it can travel approximately 22-28 miles (35-45 km) on a single charge. In assist mode, the range increases to around 32-50 miles (50-80 km).

Conclusion

For any issues or problems with your VIVI MT26G Electric Bike, it is always recommended to refer to the instruction manual provided by the manufacturer. Additionally, you can reach out to the customer service or visit a service center for assistance. The VIVI team is dedicated to providing professional support and ensuring your biking experience is enjoyable. Ride safely and have a great time with your VIVI MT26G Electric Bike!