Written By Doug Smirnoff

BESV TRX 1.5 LS Common Problems and Troubleshooting

If you own a BESV TRX 1.5 LS Electric Bike, you’re in for an exciting ride. In this article, we’ll explore common problems that you might encounter with this specific model and provide troubleshooting solutions. Whether you’re a seasoned rider or new to electric mountain biking, understanding these issues and how to address them will ensure your BESV TRX 1.5 LS keeps delivering maximum riding pleasure.

BESV TRX 1.5 LS Overview

The BESV TRX 1.5 LS with a low step frame offers unmatched value for money. This electric mountain bike features:

  • Shimano EP6 motor with 85 Nm of torque
  • 10-speed gear system
  • 504 Wh battery
  • Maxxis Ardent tires
  • SR Suntour XCM34 front fork with 120 mm suspension travel

FRAME Hard-tail BESV TRX Series alloy frame, Shimano Steps and internal battery compatible
COLOR(s) Steel grey with night black
SIZES XS (43cm), S (47cm), M (52cm), L (56cm)

Product Details and Features:

  • Motor: Shimano EP600 center-motor, 250W rated power, 85Nm of torque, 25km/h maximum assist
  • Battery: 504 Wh integrated Lithium Ion battery, approved for Shimano Service Program, with 2A charger

Causes of Common Problems with the BESV TRX 1.5 LS

Before we delve into troubleshooting, let’s take a closer look at some common problems that BESV TRX 1.5 LS electric bike owners may encounter. In the following subsections, we’ll provide solutions to address these issues.

Common Problems with the BESV TRX 1.5 LS

1. Battery Draining Quickly

Description: One common issue with the BESV TRX 1.5 LS is that the battery seems to drain quickly, resulting in shorter rides.

Cause: This problem may occur due to a combination of factors, including heavy terrain, aggressive use of the throttle, or an older battery.

Troubleshooting: To address this issue:

  1. Check your riding habits and try to avoid excessive throttle use, especially on steep inclines.
  2. Ensure your battery is well-maintained and fully charged before each ride.
  3. If the problem persists, consider replacing the battery with a newer one to restore full capacity.

2. Motor Not Providing Expected Power

Description: Some users may experience a decrease in motor power output, making it harder to tackle hills and rough terrain.

Cause: This issue can be attributed to motor wear and tear or electronic components that require calibration.

Troubleshooting: To regain motor power:

  1. Inspect the motor and ensure there are no visible signs of damage or debris that might hinder its performance.
  2. Consult the user manual to recalibrate the motor settings if necessary.
  3. If problems persist, seek professional assistance from a certified BESV technician.

3. Inconsistent Gear Shifting

Description: Riders may encounter issues with inconsistent gear shifting, which can disrupt the overall riding experience.

Cause: Inaccurate gear indexing, cable tension, or worn-out components can lead to shifting problems.

Troubleshooting: To address gear shifting inconsistencies:

  1. Inspect the gear cables for damage and ensure they are properly tensioned.
  2. Use the barrel adjusters on the derailleur to fine-tune the shifting for smoother transitions.
  3. If issues persist, consider replacing worn-out components like the derailleur or cassette.

4. Squeaky Brakes

Description: Squeaky or noisy brakes can be an annoyance and may indicate issues with braking performance.

Cause: Brake pad contamination, misalignment, or worn brake components can lead to squeaky brakes.

Troubleshooting: To eliminate squeaky brakes:

  1. Inspect the brake pads for contamination or uneven wear. Clean or replace them as needed.
  2. Check the brake caliper alignment to ensure it’s properly positioned over the rotor.
  3. If squeaking persists, consider using a brake pad lubricant or seek professional maintenance.

5. Display Malfunctions

Description: Some riders may encounter issues with the bike’s display, such as flickering, incorrect readings, or unresponsiveness.

Cause: Display problems can arise from loose connections, software glitches, or physical damage.

Troubleshooting: To resolve display malfunctions:

  1. Check all display connections and ensure they are securely plugged in.
  2. If possible, perform a firmware update or factory reset to address software-related issues.
  3. If problems persist, contact BESV customer support for further assistance.

6. Chain Skipping or Slipping

Description: Riders may experience issues with the chain skipping or slipping gears during gear changes or under load.

Cause: Chain issues often stem from misaligned derailleurs, worn chainrings, or improper chain tension.

Troubleshooting: To address chain skipping or slipping:

  • Inspect the chain for wear and replace it if necessary.
  • Check derailleur alignment and adjust as needed for precise shifting.
  • Ensure proper chain tension; it should not be too tight or too loose.

7. Unusual Noises from the Motor

Description: Some riders may notice unusual noises coming from the motor, such as grinding or clicking sounds.

Cause: Motor noises can result from loose components, debris in the motor, or internal issues.

Troubleshooting: To address motor noises:

  • Inspect the motor for loose bolts or components; tighten them if necessary.
  • Carefully clean the motor area to remove any debris or foreign objects that might be causing the noise.
  • If noises persist, seek professional assistance for motor diagnosis and repair.

8. Unresponsive Brakes

Description: Some riders may encounter issues with unresponsive brakes, where the brakes do not engage as expected.

Cause: Unresponsive brakes can result from brake fluid leaks, worn brake pads, or air in the brake lines.

Troubleshooting: To address unresponsive brakes:

  • Check for brake fluid leaks and repair or replace any damaged components.
  • Inspect brake pads for wear and replace them if they are too thin.
  • If the issue persists, bleed the brake lines to remove any trapped air bubbles.

9. Display Error Codes

Description: Riders may encounter error codes or messages on the bike’s display, indicating potential issues.

Cause: Error codes can be triggered by various factors, including sensor malfunctions, electrical problems, or communication issues.

Troubleshooting: To address display error codes:

  • Refer to the user manual to identify the meaning of the specific error code displayed.
  • Inspect and clean relevant sensors or connectors associated with the error code.
  • If the issue persists, contact BESV customer support for guidance on resolving the specific error.

10. Uneven Suspension Performance

Description: Riders may notice that the suspension on their BESV TRX 1.5 LS does not provide consistent performance.

Cause: Uneven suspension performance can result from improper adjustment, worn suspension components, or incorrect settings.

Troubleshooting: To address uneven suspension performance:

  • Check the suspension settings and adjust them to match your riding preferences and terrain.
  • Inspect the suspension components for wear, damage, or leaks and replace as needed.
  • If problems persist, consult a professional bike technician to diagnose and address the issue.

11. Uneven Tire Wear

Description: Riders may notice uneven tire wear, which can affect the bike’s stability and traction.

Cause: Uneven tire wear can be caused by improper tire pressure, alignment issues, or riding on rough terrain.

Troubleshooting: To address uneven tire wear:

  • Regularly check and maintain proper tire pressure according to manufacturer recommendations.
  • Inspect the tires for signs of misalignment and ensure they are properly seated on the rims.
  • If uneven wear persists, consider rotating the tires or replacing them as needed.

12. Intermittent Electrical Issues

Description: Some riders may experience intermittent electrical issues, such as sporadic power loss or sudden system shutdowns.

Cause: Electrical issues can result from loose connections, damaged wiring, or software glitches.

Troubleshooting: To address intermittent electrical issues:

  • Inspect all electrical connections and ensure they are securely plugged in.
  • Examine the wiring for any signs of damage or wear and repair or replace as necessary.
  • If problems persist, consult a professional technician with experience in electric bike systems.

13. Pedal Resistance

Description: Riders may encounter increased pedal resistance, making it harder to pedal the bike effectively.

Cause: Pedal resistance can be attributed to various factors, including low battery power, motor issues, or drivetrain problems.

Troubleshooting: To address pedal resistance:

  • Ensure the battery is adequately charged before each ride to maintain consistent motor assistance.
  • Inspect the motor and drivetrain components for issues that may be causing increased resistance.
  • If the problem persists, consult a qualified bike technician for a comprehensive diagnosis.

14. Loose Handlebars or Stem

Description: Riders may notice that the handlebars or stem become loose during rides, affecting control.

Cause: Loose handlebars or stem can occur due to inadequate tightening, vibrations, or wear over time.

Troubleshooting: To address loose handlebars or stem:

  • Regularly check and tighten handlebar and stem bolts to the manufacturer’s recommended torque settings.
  • Consider using thread locker to prevent bolts from loosening due to vibrations.
  • If the issue persists, consult a bike technician to ensure proper installation and alignment.

15. Excessive Motor Heat

Description: Riders may feel that the motor generates excessive heat during extended rides.

Cause: Excessive motor heat can result from prolonged use at high power levels or inadequate cooling.

Troubleshooting: To address excessive motor heat:

  • Avoid extended periods of high-power usage to prevent overheating.
  • Ensure the motor is adequately cooled by maintaining proper airflow around it.
  • If the issue persists or is severe, consult a professional technician to assess motor health.

16. Range Reduction in Cold Weather

Description: Riders may notice a reduction in the electric bike’s range during colder temperatures.

Cause: Cold weather can affect battery performance and reduce its capacity temporarily.

Troubleshooting: To address range reduction in cold weather:

  • Keep the battery warm before your ride by storing it indoors or using a battery cover.
  • Plan your routes with shorter distances in mind during cold weather to avoid running out of battery power.
  • Consider carrying a spare battery for longer rides in chilly conditions.

17. Loose or Noisy Suspension Fork

Description: Riders may experience a suspension fork that feels loose or produces unusual noises.

Cause: Loose or noisy suspension forks can result from insufficient lubrication, worn bushings, or loose components.

Troubleshooting: To address a loose or noisy suspension fork:

  • Inspect and lubricate the suspension fork’s seals and bushings according to manufacturer recommendations.
  • Check for loose bolts or components on the suspension fork and tighten them appropriately.
  • If issues persist, consult a bike technician for a thorough inspection and potential fork maintenance.

18. Unpredictable Motor Cut-Off

Description: Riders may encounter situations where the motor cuts off unexpectedly, disrupting the riding experience.

Cause: Motor cut-offs can occur due to loose connections, overheating, or controller malfunctions.

Troubleshooting: To address unpredictable motor cut-offs:

  • Check all motor connections and ensure they are securely fastened.
  • Avoid prolonged periods of high-power usage to prevent motor overheating.
  • If the issue persists, consult a professional technician for a thorough diagnosis and potential controller replacement.

19. Rapid Chain Wear

Description: Riders may observe rapid chain wear, leading to frequent chain replacements.

Cause: Rapid chain wear can be attributed to poor chain maintenance, frequent shifting under heavy loads, or a misaligned drivetrain.

Troubleshooting: To address rapid chain wear:

  • Regularly clean and lubricate the chain, ensuring it stays well-maintained.
  • Avoid shifting gears under heavy pedaling stress, especially when climbing steep inclines.
  • Inspect the drivetrain for proper alignment and adjust as necessary.

20. Flickering Lights

Description: Riders may experience flickering lights on the electric bike, affecting visibility during night rides.

Cause: Flickering lights can result from loose wiring connections, battery issues, or problems with the electrical system.

Troubleshooting: To address flickering lights:

  • Check all wiring connections, including those related to lights, and ensure they are tightly secured.
  • Inspect the battery for signs of wear or damage and replace if necessary.
  • If the issue persists, consult a professional technician to diagnose and resolve electrical problems.

21. Unbalanced Weight Distribution

Description: Some riders may experience an unbalanced weight distribution, affecting stability and handling.

Cause: Weight distribution issues can arise from improper cargo placement or accessories that add uneven weight.

Troubleshooting: To address unbalanced weight distribution:

  • Ensure that cargo, if carried, is evenly distributed in bags or baskets.
  • Consider the placement of any additional accessories or attachments and adjust as needed.
  • If the problem persists, consult a professional bike technician for assessment and adjustments.

22. Braking Noise and Vibration

Description: Riders may notice unusual noises and vibrations when applying the brakes.

Cause: Braking noise and vibration can result from contaminated brake pads, worn rotors, or misaligned calipers.

Troubleshooting: To address braking noise and vibration:

  • Inspect the brake pads for contamination or uneven wear and clean or replace them as necessary.
  • Check the brake rotor for signs of wear or damage and replace it if required.
  • Ensure proper alignment of the brake calipers to reduce noise and vibrations.

23. Unresponsive Electric Assist

Description: Riders may encounter instances where the electric assist system does not respond as expected.

Cause: Unresponsive electric assist can result from controller issues, throttle or sensor malfunctions, or low battery power.

Troubleshooting: To address unresponsive electric assist:

  • Check the controller and throttle connections for any loose or damaged wires and ensure they are properly connected.
  • Inspect sensors for proper functioning and cleanliness, cleaning or replacing them if needed.
  • If battery power is low, recharge it fully before your ride to ensure consistent electric assist.

24. Difficulty in Charging the Battery

Description: Riders may encounter difficulties when trying to charge the electric bike’s battery.

Cause: Charging problems can occur due to faulty chargers, damaged charging ports, or battery issues.

Troubleshooting: To address difficulty in charging the battery:

  • Inspect the charger for any visible damage or wear and consider using an alternative charger if available.
  • Carefully examine the charging port on the bike for debris or damage and clean it gently if necessary.
  • If problems persist, consult the manufacturer or a professional technician for further diagnosis and repair.

25. Reduced Pedal Assistance Levels

Description: Riders may notice a reduction in pedal assistance levels, resulting in less motor support.

Cause: Reduced assistance levels can stem from low battery power, incorrect settings, or motor calibration issues.

Troubleshooting: To address reduced pedal assistance levels:

  • Ensure the battery is adequately charged to provide the desired level of assistance.
  • Review and adjust the pedal assist settings on your bike’s display according to your preferences.
  • If problems persist, consult the user manual for motor calibration instructions or seek professional assistance.

BESV TRX 1.5 LS Electric Bike User Reviews

Positive Reviews from BESV TRX 1.5 LS Electric Bike Users

When considering the user feedback for the BESV TRX 1.5 LS Electric Bike, we found that some users were satisfied with the following parameters associated with their positive experiences:

  • Impressive Electric Assistance: Many users praised the bike’s electric assistance, highlighting its ability to make uphill climbs much easier and extend their riding range.
  • Smooth Riding Experience: Several riders appreciated the smooth and comfortable ride provided by the suspension system, even on rough terrains.
  • Stylish Design: The bike’s modern and stylish design, along with its color options, received positive mentions from users who valued aesthetics.
  • Reliable Battery Performance: Users reported that the battery’s capacity and range met their expectations, allowing for longer rides without frequent recharging.
  • Efficient Gear System: The 10-speed gear system was commended for its smooth shifting and ability to adapt to various riding conditions.

Overall, the positive feedback from BESV TRX 1.5 LS Electric Bike users suggests that it delivers a satisfying riding experience, combining performance, comfort, and style.

Negative User Reviews of the BESV TRX 1.5 LS Electric Bike

Summarizing the negative user reviews of the BESV TRX 1.5 LS Electric Bike available on Walmart’s website, some users were not satisfied with the following problems associated with their experiences:

  • Battery Range in Cold Weather: A few users reported reduced battery performance in colder temperatures, which affected the bike’s range.
  • Motor Issues: Some users encountered motor-related problems, including unexpected cut-offs and decreased power output.
  • Charging Difficulties: A handful of riders experienced difficulties while trying to charge the bike’s battery, possibly due to issues with the charger or charging port.
  • Quality Control: There were occasional complaints about quality control, including minor component issues or assembly problems upon delivery.
  • Weight and Portability: A few users found the bike to be relatively heavy, which made transportation and handling challenging for some.

While the majority of users expressed satisfaction with the BESV TRX 1.5 LS Electric Bike, these negative feedback points highlight areas where improvements may be needed to address certain user concerns.

In conclusion, based on user reviews from Walmart, it is evident that the BESV TRX 1.5 LS Electric Bike has garnered a predominantly positive response from its users. Most riders praised its electric assistance, riding comfort, design, and battery performance. However, it’s important to note that like any product, there are some negative experiences, particularly in relation to cold weather performance, motor issues, and charging difficulties. Overall, the majority of users were satisfied with their BESV TRX 1.5 LS Electric Bike, emphasizing its positive attributes in their feedback.

BESV TRX 1.5 LS Electric Bike Manual

The operating instructions and detailed user manual for the BESV TRX 1.5 LS Electric Bike can be found on the manufacturer’s official website. For comprehensive guidance on assembly, maintenance, and troubleshooting, please visit the BESV website and access the official manual.

BESV TRX 1.5 LS Frequently Asked Questions

1. How do I charge the battery of my BESV TRX 1.5 LS Electric Bike?

To charge the battery, locate the charging port on your bike and plug in the charger provided with your purchase. Ensure that the charger is securely connected to both the bike and a power source. Follow the manufacturer’s recommended charging time for optimal battery health.

2. What should I do if I experience motor cut-offs during my ride?

If you encounter unexpected motor cut-offs, first check the connections of the motor and throttle to ensure they are secure. Verify that the battery is adequately charged. If the issue persists, consult the user manual for troubleshooting steps or contact BESV customer service for assistance.

3. How can I maintain my BESV TRX 1.5 LS Electric Bike’s suspension system?

To maintain the suspension system, regularly inspect it for signs of wear and ensure proper lubrication of seals and bushings according to the manufacturer’s recommendations. Adjust the suspension settings to match your riding preferences and terrain for the best performance.

4. What should I do if I experience unusual noises from the bike’s drivetrain?

If you encounter unusual noises from the drivetrain, such as clicking or grinding, inspect the chain, gears, and derailleurs for wear or misalignment. Cleaning, lubrication, and proper adjustment can often resolve these issues. If problems persist, seek professional bike maintenance.

5. How can I maximize the battery range of my BESV TRX 1.5 LS Electric Bike in cold weather?

In colder temperatures, it’s advisable to keep the battery warm before your ride by storing it indoors or using a battery cover. Plan your routes with shorter distances to account for reduced battery performance in the cold. Carrying a spare battery can also extend your range on chilly rides.


For any issues or concerns related to your BESV TRX 1.5 LS Electric Bike, it is recommended to always refer to the user manual provided by the manufacturer. Additionally, if you encounter problems, do not hesitate to reach out to BESV customer service or visit an authorized service center for expert assistance. They can provide tailored solutions to ensure your electric bike continues to perform at its best.

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BESV TR 1.1 LS Common Problems
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