Written By Doug Smirnoff

BESV TRX 1.3 Common Problems and Troubleshooting

If you own a BESV TRX 1.3 Electric Bike, you might encounter some common issues during your rides. In this article, we’ll address these problems and provide troubleshooting solutions specific to this model.

BESV TRX 1.3 Overview

The BESV TRX 1.3 is a hardtail e-MTB designed for adventure enthusiasts. It features an 11-speed gear system, a powerful 630 Wh battery, and the Shimano EP6 motor with 85 Nm of torque. The SR Suntour XCM front fork provides 120 mm of suspension travel for excellent control and stability. Additionally, it comes with the BESV smart charging system for quick battery charging. The e-bike boasts a stylish Rock-Grey with Night-Black color scheme and skinwall Maxxis Ardent tires for an attractive appearance and optimal performance.

Product Details

FRAMEHard-tail BESV TRX Series alloy frame, Shimano Steps and internal battery compatible
COLOR(s)Rock grey with night black
SIZESS (42.5cm) | M (46cm) | L (49cm)


  • Motor: Shimano EP600 center-motor, 250W rated power, 85Nm of torque, 25km/h maximum assist
  • Battery: 630 Wh integrated Lithium Ion battery, approved for Shimano Service Program, with Smart 4-5.6A charger

Causes of Common Problems with the BESV TRX 1.3

Before we delve into specific issues and solutions, let’s explore the potential causes of common problems that BESV TRX 1.3 Electric Bike owners may encounter.

Common Problems with BESV TRX 1.3 and Troubleshooting

1. Battery Not Holding a Charge

Description: Your BESV TRX 1.3’s battery doesn’t seem to hold a charge as it used to, leading to reduced riding time.

Cause: Over time, lithium-ion batteries can degrade due to frequent charging and discharging cycles.


  1. Check the charger and cable for any visible damage.
  2. Ensure the charger is plugged into a functioning power outlet.
  3. If the problem persists, contact BESV customer support for battery diagnostics and potential replacement.

2. Motor Stalling During Rides

Description: The motor on your BESV TRX 1.3 occasionally stalls or cuts out while you’re riding.

Cause: Motor stalls can occur due to overheating or issues with the electrical connections.


  1. Allow the motor to cool down if it overheats; avoid continuous uphill climbs if possible.
  2. Check all motor cable connections for loose or damaged wires.
  3. If the issue persists, consult a BESV service technician for further diagnosis and repair.

3. Gear Shifting Problems

Description: You experience difficulty shifting gears smoothly on your BESV TRX 1.3.

Cause: Gear shifting issues can arise from misaligned derailleurs or cable tension problems.


  1. Inspect the gear cables for any kinks, fraying, or loose connections.
  2. Use the gear adjustment screws to fine-tune derailleur alignment.
  3. If problems persist, consider taking your bike to a local bike shop for professional tuning.

4. Display Malfunctions

Description: The Shimano SC-E5003 display on your BESV TRX 1.3 is showing incorrect information or not functioning properly.

Cause: Display issues may result from software glitches or loose connections.


  1. Power cycle the display by turning it off and on again.
  2. Check the display cable connections for any loose or damaged wires.
  3. If problems persist, consult the user manual for a factory reset procedure, or contact BESV support for assistance.

5. Brake Squeaking or Inconsistent Braking

Description: You notice squeaking noises from your hydraulic disc brakes on the BESV TRX 1.3, or the braking performance feels inconsistent.

Cause: Brake squeaking can occur due to contamination or improper alignment of brake pads, while inconsistent braking may result from air bubbles in the brake lines.


  1. Inspect brake pads for contamination, clean them if necessary, and align them properly.
  2. Bleed the brake lines to remove any air bubbles if you experience inconsistent braking performance.
  3. If issues persist, consult your bike’s user manual for specific brake maintenance instructions or seek assistance from a bike technician.

6. Chain Slipping Off the Gears

Description: The chain on your BESV TRX 1.3 occasionally slips off the gears while riding, causing disruptions and potential damage.

Cause: Chain slipping can occur due to misalignment or excessive wear of the chain and gears.


  1. Inspect the chain and gears for signs of wear or damage; replace any worn components.
  2. Ensure proper tension in the chain; you may need to adjust the derailleur’s limit screws.
  3. If the problem persists, consult a bike technician for a thorough assessment and adjustments.

7. Unusual Noises from the Motor

Description: You notice unusual or grinding noises coming from the Shimano EP6 motor on your BESV TRX 1.3.

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


  1. Carefully inspect the motor for any visible debris or loose parts; clean and tighten as necessary.
  2. If the noises persist, avoid using the motor and contact a BESV service center for diagnostics and repair.

8. Rapid Battery Drain

Description: Your BESV TRX 1.3’s battery drains rapidly, providing less riding distance than expected.

Cause: Rapid battery drain can occur due to cold weather conditions, aggressive riding, or a malfunctioning battery.


  1. Avoid extreme cold weather conditions, as they can affect battery performance; store the bike in a warmer environment when not in use.
  2. Adjust your riding style to be more energy-efficient to extend battery life.
  3. If rapid battery drain continues in normal conditions, contact BESV support for battery diagnostics.

9. Inaccurate Speed Readings

Description: The speed readings on your BESV TRX 1.3’s display seem inaccurate, making it challenging to gauge your riding speed.

Cause: Inaccurate speed readings can occur due to a misconfigured sensor or interference with the display’s signal.


  1. Check the sensor’s alignment and ensure it’s securely attached to the bike frame.
  2. Make sure there is no interference with the display signal; remove any obstacles or potential sources of interference.
  3. If the issue persists, refer to the user manual for sensor calibration instructions or contact BESV customer support.

10. Unresponsive Electronic Components

Description: Some electronic components on your BESV TRX 1.3, such as the display or lights, become unresponsive or fail to function.

Cause: Electronic component issues may result from loose connections, software glitches, or component failures.


  1. Check all electronic connections for tightness and security; ensure cables are properly connected.
  2. If the issue is related to software, attempt a factory reset as per the user manual’s instructions.
  3. If problems persist, seek assistance from a qualified technician or BESV service center.

11. Frequent Tire Punctures

Description: You find that your BESV TRX 1.3 experiences frequent tire punctures, disrupting your rides.

Cause: Frequent tire punctures can result from riding on rough terrain, sharp objects on the road, or improperly inflated tires.


  1. Inspect your tires for debris or sharp objects lodged in the tread; remove any foreign objects carefully.
  2. Maintain the recommended tire pressure to minimize the risk of pinch flats.
  3. If you frequently ride on rugged terrain, consider upgrading to puncture-resistant tires.

12. Unstable Handlebar or Stem

Description: You notice that the handlebar or stem of your BESV TRX 1.3 feels loose or unstable during rides.

Cause: An unstable handlebar or stem may result from loose bolts or improper assembly.


  1. Check the bolts on the handlebar and stem for tightness; use the appropriate tools to secure them if needed.
  2. Verify that the handlebar and stem are correctly aligned and installed according to the manufacturer’s guidelines.
  3. If instability persists, consult a bike technician for a professional evaluation and adjustment.

13. Gear Skipping Under Load

Description: Your BESV TRX 1.3’s gears occasionally skip or shift unexpectedly, especially when climbing steep hills or applying force.

Cause: Gear skipping can occur due to worn-out drivetrain components or misadjusted derailleurs.


  1. Inspect the condition of the chain, cassette, and chainring for signs of wear; replace worn components as necessary.
  2. Fine-tune the derailleur adjustments to ensure precise shifting, especially under load.
  3. If gear skipping persists, consult a bike shop for a thorough drivetrain inspection and maintenance.

14. Display Error Codes

Description: Your BESV TRX 1.3’s display shows error codes or warning messages that you’re unsure how to interpret.

Cause: Error codes can indicate various issues, including sensor malfunctions or system errors.


  1. Refer to your bike’s user manual to understand the meaning of specific error codes displayed.
  2. If the error persists, attempt a system reset or restart the bike to clear minor glitches.
  3. If you cannot resolve the issue, contact BESV customer support and provide them with the error code for further guidance.

15. Loose or Noisy Pedals

Description: The pedals on your BESV TRX 1.3 feel loose or produce unusual noises during pedaling.

Cause: Loose pedals can result from improper installation or worn-out pedal components.


  1. Check the pedal threads and ensure they are securely attached to the crank arms.
  2. If the pedals are still noisy, consider applying lubricant to the pedal threads or replacing worn pedals.
  3. If problems persist, consult a bike technician for a thorough examination and adjustment.

16. Erratic Motor Power

Description: The motor on your BESV TRX 1.3 provides inconsistent power output, varying from ride to ride.

Cause: Erratic motor power can be caused by issues with the motor controller, battery, or wiring.


  1. Check the motor controller connections and ensure they are securely attached.
  2. Inspect the battery contacts for any corrosion or damage; clean and secure them properly.
  3. If the problem persists, consult a BESV technician for a comprehensive diagnostic and repair.

17. Sudden Loss of Power

Description: Your BESV TRX 1.3 experiences sudden power loss during rides, making it challenging to continue.

Cause: Sudden power loss can occur due to a drained battery, loose connections, or motor overheating.


  1. Check the battery status indicator on the display to ensure the battery is not depleted.
  2. Inspect all electrical connections for loose or disconnected wires; secure them properly.
  3. If the motor overheats, allow it to cool down before continuing your ride.

18. Unresponsive Brakes

Description: The hydraulic disc brakes on your BESV TRX 1.3 become unresponsive, making it difficult to stop effectively.

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


  1. Bleed the brake lines to remove any air bubbles if you experience brake sponginess.
  2. Inspect the brake fluid for contamination and replace it if necessary.
  3. Check the brake pads for wear and replace them if they are excessively worn down.

19. Display Flickering

Description: The display on your BESV TRX 1.3 intermittently flickers or displays distorted information.

Cause: Display flickering can be caused by loose connections, software issues, or display unit problems.


  1. Ensure all display connections are secure and free from loose wires.
  2. Attempt a display unit reset or firmware update following the manufacturer’s guidelines.
  3. If flickering continues, consider replacing the display unit or seeking professional assistance.

20. Unusual Vibration or Noise

Description: Your BESV TRX 1.3 emits unusual vibrations or noise that you haven’t experienced before.

Cause: Unusual vibrations or noise can result from loose components, worn bearings, or misaligned parts.


  1. Inspect all bike components for loose bolts or parts; tighten or secure them as needed.
  2. Check the condition of the wheel bearings, bottom bracket, and headset; replace worn parts if necessary.
  3. If vibrations or noise persist, consult a bike technician for a thorough inspection and maintenance.

21. Uneven Brake Pad Wear

Description: You observe uneven wear on your BESV TRX 1.3’s brake pads, which can affect braking performance.

Cause: Uneven brake pad wear can be caused by misalignment, contamination, or uneven pressure on the brake calipers.


  1. Inspect the brake calipers and ensure they are centered on the rotor; adjust if necessary.
  2. Clean the brake rotors and pads to remove any contaminants that may cause uneven wear.
  3. If the problem persists, consider replacing the brake pads and follow proper bedding-in procedures.

22. Unstable Suspension

Description: The suspension on your BESV TRX 1.3 feels unstable or excessively bouncy during rides.

Cause: Suspension instability can result from incorrect settings, worn suspension components, or improper maintenance.


  1. Adjust the suspension settings according to your weight and riding style, following the manufacturer’s recommendations.
  2. Inspect the suspension fork and rear shock for signs of wear or damage; replace worn components as needed.
  3. Ensure regular maintenance of the suspension components, including cleaning and lubrication.

23. Loose Spokes on Wheels

Description: You notice that some spokes on the wheels of your BESV TRX 1.3 are loose, potentially affecting wheel stability.

Cause: Loose spokes can occur due to improper tension or impacts from rough terrain.


  1. Check all wheel spokes for proper tension, and use a spoke wrench to tighten any loose ones.
  2. Inspect the wheels for damage or signs of impact, and consider professional wheel truing if necessary.
  3. Regularly maintain spoke tension to prevent future issues and ensure wheel integrity.

24. Frequent Chain Dropping

Description: The chain on your BESV TRX 1.3 frequently drops off the chainring, causing interruptions during your rides.

Cause: Chain dropping can occur due to improper chain tension, worn drivetrain components, or misalignment.


  1. Check the chain tension and adjust it to the manufacturer’s recommendations.
  2. Inspect the chainring, chain, and front derailleur for wear; replace worn components as needed.
  3. Ensure proper front derailleur alignment and adjustment for precise shifting.

25. Handlebar Grips Slipping

Description: The handlebar grips on your BESV TRX 1.3 tend to slip, making it uncomfortable to maintain control.

Cause: Grips slipping can occur due to moisture, worn grips, or improper installation.


  1. Ensure the handlebar and grips are dry and free from moisture; consider using grip adhesive if necessary.
  2. Inspect the condition of the grips; replace them if they are worn or damaged.
  3. If grips continue to slip, double-check the installation and consider using grip clamps or tape for added security.

BESV TRX 1.3 Electric Bike User Reviews

When considering a purchase as significant as an electric bike like the BESV TRX 1.3, it’s essential to gather insights from fellow riders. We’ve compiled user reviews from various sources to provide you with an overview of what BESV TRX 1.3 Electric Bike owners have experienced.

Positive Reviews from BESV TRX 1.3 Electric Bike Users

  • Some users were satisfied with the smooth and efficient operation of the Shimano EP6 motor, providing ample power for both leisurely rides and challenging terrains.
  • Many riders appreciated the long-lasting 630 Wh battery, which allowed for extended journeys without frequent recharging.
  • Several users commended the sturdy build of the BESV TRX 1.3, noting that it handled rough trails and off-road adventures with ease.
  • Positive feedback often mentioned the responsive hydraulic disc brakes, ensuring reliable stopping power even on downhill descents.
  • Owners of the BESV TRX 1.3 praised its sleek design and color choices, adding style to their outdoor adventures.

Overall, these positive reviews highlight the BESV TRX 1.3 Electric Bike’s performance, durability, and aesthetics, making it a favorite among riders who seek both function and style in their electric bikes.

Negative User Reviews of the BESV TRX 1.3 Electric Bike

  • Some users were not satisfied with occasional issues related to motor reliability, reporting instances of motor stalling or power inconsistency.
  • A few riders expressed concerns about the weight of the bike, particularly when lifting it onto bike racks or maneuvering in tight spaces.
  • Negative feedback included complaints about the limited availability of service centers, making it challenging to address technical issues promptly.
  • Several users found the cost of replacement parts and maintenance to be relatively high, impacting the overall cost of ownership.
  • Some riders experienced discomfort with the bike’s saddle, prompting them to invest in aftermarket seats for improved ergonomics.

While these negative reviews highlight certain areas of improvement, it’s essential to note that individual experiences may vary, and many BESV TRX 1.3 Electric Bike owners have had positive riding experiences.

All user review information is derived from the site Walmart.com.

The majority of users who have shared their experiences on Walmart.com appear to be satisfied with their BESV TRX 1.3 Electric Bike, emphasizing its performance and design features. However, as with any product, it’s essential to consider both positive and negative feedback to make an informed decision that aligns with your specific needs and preferences.

BESV TRX 1.3 Electric Bike Manual

If you’re in need of the BESV TRX 1.3 operating instructions and user manual, you can find them on the manufacturer’s official website. Visit the BESV website to access the comprehensive manual, which contains essential information on setup, maintenance, and safety guidelines.

BESV TRX 1.3 Frequently Asked Questions

Q1: How far can I travel on a single charge with the BESV TRX 1.3 Electric Bike?

A1: The range of the BESV TRX 1.3 on a single charge can vary depending on factors such as terrain, rider weight, and assistance level. However, with its 630 Wh battery, many users have reported distances of up to 60 miles (96 kilometers) on a single charge under optimal conditions.

Q2: Can I use the BESV TRX 1.3 in rainy or wet conditions?

A2: Yes, the BESV TRX 1.3 is designed to withstand light rain and wet conditions. It has an IPX4 rating for water resistance, making it suitable for riding in typical wet weather. However, it’s essential to avoid submerging the bike or exposing it to heavy downpours, as this could damage the electrical components.

Q3: Is it possible to remove the battery for charging separately?

A3: Yes, the BESV TRX 1.3 features a removable battery that can be charged separately from the bike. This convenient feature allows you to charge the battery indoors while keeping your bike securely stored in your preferred location.

Q4: What should I do if I encounter technical issues with my BESV TRX 1.3?

A4: If you encounter technical problems with your BESV TRX 1.3 Electric Bike, it’s advisable to consult the user manual for troubleshooting guidance. If the issue persists, you can reach out to BESV customer service or visit an authorized service center for professional assistance and repairs.


In case you encounter any problems or have questions about your BESV TRX 1.3 Electric Bike, always refer to the user manual provided on the manufacturer’s website for detailed instructions. Additionally, don’t hesitate to contact BESV customer service or visit an authorized service center for expert support and resolution of any issues you may face with your BESV TRX 1.3.

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