Written By Doug Smirnoff

BESV TRX 1.3 LS Common Problems and Troubleshooting

BESV TRX 1.3 LS Common Problems and Troubleshooting

Welcome to our guide on troubleshooting common problems with the BESV TRX 1.3 LS Electric Bike. If you own this specific model, you’re in the right place to learn about potential issues and how to resolve them. Whether you’re a seasoned rider or just getting started, understanding these common problems and their solutions will help you enjoy your e-bike to the fullest.

BESV TRX 1.3 LS Overview

The BESV TRX 1.3 LS is a low step hardtail e-MTB that comes packed with impressive features. Here’s a brief overview based on the product details, specifications, and features from the official website:

Frame: Hard-tail BESV TRX Series alloy frame, Shimano Steps and internal battery compatible
Color(s): Rock grey with night black

In addition to its specifications, the BESV TRX 1.3 LS features a Shimano EP6 motor with 85 Nm of torque, a 630 Wh battery, and a smart charging system for quick recharging. With a Suntour XCM front fork providing 120 mm suspension travel, this e-bike ensures excellent control and stability. It’s designed for adventure seekers who are ready to take on the trails.

Causes of Common Problems with the BESV TRX 1.3 LS

Before we delve into troubleshooting, let’s identify some common problems you might encounter with the BESV TRX 1.3 LS Electric Bike. In the following subsections, we’ll address these issues and provide solutions to keep your e-bike running smoothly.

Common Problems with BESV TRX 1.3 LS

1. Battery Not Holding a Charge

Description: One common issue with the BESV TRX 1.3 LS is that the battery doesn’t seem to hold a charge as expected. This can lead to reduced range and inconvenience during rides.

Cause: Several factors can contribute to this problem, including age and wear of the battery, improper charging habits, or a malfunctioning charger.

Troubleshooting: To resolve this issue, follow these steps:

  1. Check the charging cable and connections for any damage or loose connections.
  2. Ensure you’re using the provided charger and it’s in good working condition.
  3. If the issue persists, contact your authorized BESV service center for a battery health check.

2. Motor Not Providing Expected Power

Description: Some users may experience a decrease in the motor’s power output, resulting in reduced assistance while riding.

Cause: This issue can arise due to motor wear, sensor malfunctions, or software-related problems.

Troubleshooting: To address this problem, consider the following steps:

  1. Check for any physical damage or debris around the motor and sensors; clean if necessary.
  2. Ensure that your bike’s firmware and software are up to date by following the manufacturer’s instructions.
  3. If the problem persists, consult a qualified technician to diagnose and repair the motor system.

3. Gearing Issues

Description: Gearing problems, such as difficulty shifting or chain slipping, can impact the overall riding experience.

Cause: Gearing issues may occur due to cable tension problems, misalignment, or worn-out components.

Troubleshooting: To resolve gearing issues on your BESV TRX 1.3 LS, follow these steps:

  1. Inspect the gear cables for damage, and adjust tension if necessary.
  2. Check the alignment of your derailleur and ensure it’s properly lubricated.
  3. If the problem persists, consider replacing worn-out components or seek professional assistance.

4. Display Malfunction

Description: A malfunctioning display can make it challenging to monitor your bike’s settings and performance data.

Cause: Display issues can stem from wiring problems, software glitches, or physical damage to the display unit.

Troubleshooting: To address display problems, follow these steps:

  1. Inspect the display’s wiring for loose connections or damage.
  2. If possible, reset the display unit to factory settings and update its software.
  3. If the issue persists, contact BESV customer support or an authorized service center for further assistance.

5. Brake Performance Issues

Description: Inadequate braking performance can be a safety concern. This includes issues like squeaky brakes or reduced stopping power.

Cause: Brake problems can result from contaminated brake pads, improper alignment, or hydraulic fluid issues.

Troubleshooting: To improve brake performance on your BESV TRX 1.3 LS, follow these steps:

  1. Check the brake pads for contamination, and clean or replace them if necessary.
  2. Inspect the brake calipers for proper alignment and adjust as needed.
  3. If you have hydraulic disc brakes, ensure the fluid levels are within the recommended range and bleed the brakes if required.

6. Unusual Noises from the Drivetrain

Description: If you hear unusual noises like clicking, grinding, or rattling coming from the drivetrain while riding, it can be concerning.

Cause: Drivetrain noises may result from loose components, a misaligned derailleur, or chain issues.

Troubleshooting: To address unusual drivetrain noises:

  1. Inspect the chain for tight links and lubricate it properly.
  2. Check the chainring, cassette, and derailleur for any loose bolts and tighten them if necessary.
  3. If the issue persists, seek professional assistance for a thorough inspection.

7. Electrical Connectivity Problems

Description: Issues with electrical connectivity can affect various bike functions, including the display and motor assistance.

Cause: Connectivity problems may arise due to loose cables, damaged connectors, or wiring faults.

Troubleshooting: To resolve electrical connectivity issues:

  1. Inspect all electrical connectors for a secure fit and any signs of damage.
  2. Check the wiring harness for wear or fraying, and repair or replace damaged sections.
  3. If necessary, consult a professional to diagnose and repair any complex wiring issues.

8. Uneven Suspension Performance

Description: If you notice that the suspension doesn’t provide consistent performance, it can impact ride comfort and control.

Cause: Uneven suspension performance can be attributed to issues such as low air pressure, worn-out seals, or damaged suspension components.

Troubleshooting: To address uneven suspension performance:

  1. Check the suspension’s air pressure according to the manufacturer’s recommendations.
  2. Inspect the suspension seals for signs of wear, and replace them if needed.
  3. If the problem persists, consult a bike shop or technician for a thorough suspension service.

9. Tire Puncture or Blowout

Description: Suffering a tire puncture or blowout during a ride can be a frustrating experience.

Cause: Punctures and blowouts typically occur due to sharp objects on the road or inadequate tire pressure.

Troubleshooting: To deal with tire punctures or blowouts:

  1. Carry essential tools like a spare tube, tire levers, and a portable pump for quick repairs on the go.
  2. Inspect your tires regularly for embedded objects or signs of wear, and replace damaged tires promptly.
  3. Maintain proper tire pressure to reduce the risk of flats and improve ride quality.

10. Difficulty with Battery Removal/Replacement

Description: Some users may face challenges when attempting to remove or replace the BESV TRX 1.3 LS battery.

Cause: Difficulty with battery removal or replacement can result from alignment issues, latch problems, or unfamiliarity with the process.

Troubleshooting: To ease battery removal or replacement:

  1. Read the bike’s user manual to understand the correct procedure for battery removal and replacement.
  2. Ensure the battery is properly aligned with the frame and latched securely in place.
  3. If you encounter persistent difficulties, seek guidance from a BESV service center or dealer.

11. Inaccurate Battery Level Indicator

Description: The battery level indicator on your BESV TRX 1.3 LS may sometimes display inaccurate information, making it challenging to estimate remaining battery life.

Cause: Inaccurate battery level readings can occur due to sensor issues, software glitches, or calibration problems.

Troubleshooting: To address an inaccurate battery level indicator:

  1. Restart the e-bike to see if the issue persists, as this may reset any temporary glitches.
  2. If the problem continues, consult your user manual for instructions on recalibrating the battery indicator.
  3. If calibration doesn’t resolve the issue, contact BESV customer support for guidance.

12. Chain Slippage During Gear Changes

Description: Chain slippage can occur when shifting gears on the BESV TRX 1.3 LS, leading to an inconsistent and frustrating riding experience.

Cause: Chain slippage is often caused by misadjusted derailleurs, worn-out chainrings, or cassette components.

Troubleshooting: To prevent chain slippage during gear changes:

  1. Inspect the chain for wear and replace it if it’s stretched or damaged.
  2. Ensure that your derailleurs are properly adjusted for smooth gear shifting.
  3. If the issue persists, consider replacing worn-out chainrings or cassette components.

13. Braking Noise and Vibration

Description: Unwanted noise and vibration during braking can be a safety concern and affect the overall riding experience.

Cause: Braking noise and vibration may be caused by contaminated brake pads, rotor misalignment, or worn-out components.

Troubleshooting: To address braking noise and vibration:

  1. Inspect the brake pads for contamination or glazing and replace them if necessary.
  2. Check the brake rotor for warping or misalignment and make adjustments as needed.
  3. If the issue persists, consult a bike shop for a thorough brake system inspection.

14. Display Error Codes

Description: Your BESV TRX 1.3 LS’s display may occasionally show error codes, indicating a potential issue that requires attention.

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

Troubleshooting: To address display error codes:

  1. Refer to your bike’s user manual or manufacturer documentation to identify the specific error code and its meaning.
  2. Attempt to reset the display unit by following the recommended procedures in the manual.
  3. If the error code persists, contact BESV customer support for guidance on further diagnostics and resolution.

15. Loose or Uncomfortable Saddle

Description: A loose or uncomfortable saddle can lead to discomfort during rides and affect your riding posture.

Cause: Saddle issues can result from loose saddle clamp bolts, improper saddle positioning, or discomfort with the saddle’s design.

Troubleshooting: To address saddle-related problems:

  1. Inspect the saddle clamp bolts and tighten them to secure the saddle in your preferred position.
  2. Adjust the saddle’s tilt, height, and fore/aft position to achieve a comfortable riding posture.
  3. If you continue to experience discomfort, consider replacing the saddle with one that better suits your preferences.

16. Unresponsive Electronic Components

Description: Some electronic components of your BESV TRX 1.3 LS, such as the display or motor, may become unresponsive, hindering your riding experience.

Cause: Unresponsive electronic components can be caused by software issues, loose connections, or power interruptions.

Troubleshooting: To address unresponsive electronic components:

  1. Check all cable connections, ensuring they are securely plugged in.
  2. Power off the e-bike, wait for a moment, and then power it back on to reset the electronic systems.
  3. If the problem persists, consider updating the firmware or consulting with a technician for a thorough diagnosis.

17. Difficulty in Shifting Gears Smoothly

Description: Riders may experience challenges when trying to shift gears smoothly, leading to an uneven and uncomfortable ride.

Cause: Difficulty in shifting gears can be attributed to cable tension issues, derailleur misalignment, or worn-out components.

Troubleshooting: To ensure smooth gear shifting:

  1. Inspect the gear cables for signs of wear or fraying and replace if necessary.
  2. Adjust the cable tension and fine-tune the derailleur to achieve precise gear changes.
  3. If problems persist, consider replacing worn-out components, such as the chain or cassette.

18. Excessive Motor Noise

Description: Excessive motor noise during operation can be distracting and may indicate an underlying issue.

Cause: Motor noise can be caused by misalignment, worn bearings, or a need for lubrication within the motor system.

Troubleshooting: To reduce excessive motor noise:

  1. Inspect the motor and its housing for loose bolts or misalignment; tighten and adjust as necessary.
  2. If possible, apply lubrication to motor components following the manufacturer’s recommendations.
  3. If the noise persists, consult with a qualified technician to diagnose and address motor-related issues.

19. Unpredictable Range Variations

Description: Some riders may notice unpredictable variations in their e-bike’s range, leading to uncertainty during longer rides.

Cause: Range variations can occur due to factors like riding conditions, battery health, and environmental temperature.

Troubleshooting: To address range variations:

  1. Consider environmental factors such as temperature and terrain when estimating your e-bike’s range.
  2. Maintain your battery according to the manufacturer’s recommendations to ensure optimal health.
  3. If you continue to experience range variations, consult your user manual or contact BESV support for guidance.

20. Handlebar and Stem Issues

Description: Problems related to the handlebar and stem, such as misalignment or slippage, can affect control and comfort while riding.

Cause: Handlebar and stem issues can be caused by loose bolts, improper assembly, or component wear.

Troubleshooting: To address handlebar and stem issues:

  1. Check and tighten all handlebar and stem bolts to ensure they are secure and properly aligned.
  2. Verify that the handlebar is positioned at a comfortable angle for your riding style.
  3. If issues persist, consider replacing worn components or seeking professional assistance for a thorough inspection.

21. Persistent Chain Dropping

Description: Chain dropping, where the chain unexpectedly falls off the chainring, can disrupt your ride and potentially cause damage.

Cause: Persistent chain dropping may result from a poorly adjusted front derailleur, chainring issues, or a worn-out chain.

Troubleshooting: To prevent chain dropping:

  1. Inspect and adjust the front derailleur to ensure it aligns properly with the chainring.
  2. Check for chainring wear or damage and replace if necessary.
  3. If the chain is worn, replace it to maintain proper engagement.

22. Unbalanced Suspension

Description: An unbalanced suspension, where one fork leg feels different from the other, can affect handling and comfort.

Cause: Unbalanced suspension may occur due to unequal air pressure, misaligned components, or damaged suspension parts.

Troubleshooting: To balance the suspension:

  1. Check and adjust the air pressure in both suspension fork legs to match the manufacturer’s specifications.
  2. Inspect the suspension components for proper alignment and potential damage.
  3. If the issue persists, consult a professional for a comprehensive suspension inspection and servicing.

23. Loose or Noisy Pedals

Description: Loose or noisy pedals can be both irritating and potentially dangerous during rides.

Cause: Pedal issues may arise from loose pedal threads, worn pedal bearings, or insufficient lubrication.

Troubleshooting: To address loose or noisy pedals:

  1. Tighten the pedal threads securely using a pedal wrench, ensuring they are properly attached to the crank arms.
  2. If pedal bearings are worn, consider replacing the pedals with new ones.
  3. Apply lubrication to the pedal threads and bearings to reduce noise and maintain smooth rotation.

24. Inconsistent Motor Assistance

Description: Inconsistent motor assistance levels can lead to an unpredictable riding experience, impacting both speed and range.

Cause: Motor assistance inconsistencies can be caused by sensor malfunctions, battery issues, or software glitches.

Troubleshooting: To address inconsistent motor assistance:

  1. Inspect sensors for proper alignment and cleanliness, ensuring they are not obstructed by dirt or debris.
  2. Check the battery’s charge level and health; replace it if it no longer holds a charge effectively.
  3. Update the e-bike’s firmware and software to the latest versions to address potential software-related issues.

25. Uncomfortable Suspension Settings

Description: Uncomfortable suspension settings can result in a harsh ride or reduced control over various terrains.

Cause: Suspension discomfort may arise from improper suspension settings, including incorrect air pressure or damping adjustments.

Troubleshooting: To set up comfortable suspension:

  1. Review the manufacturer’s recommendations for suspension settings, including air pressure and damping adjustments.
  2. Adjust the suspension settings based on your weight, riding style, and terrain preferences.
  3. If you’re unsure about the optimal settings, consult a bike shop or technician for personalized guidance.

BESV TRX 1.3 LS Electric Bike User Reviews

When considering the purchase of an electric bike like the BESV TRX 1.3 LS, it’s crucial to hear from real users who have experienced this e-bike in action. User reviews provide valuable insights into the bike’s performance, reliability, and overall satisfaction. In this section, we’ll summarize both positive and negative feedback from BESV TRX 1.3 LS Electric Bike users, based on reviews available on Walmart.com.

Positive Reviews from BESV TRX 1.3 LS Electric Bike Users

  • Some users were satisfied with the powerful Shimano EP6 motor, highlighting its smooth and responsive assistance, especially when tackling uphill terrain.
  • Many riders praised the impressive range provided by the 630 Wh battery, allowing for longer journeys without frequent recharging.
  • Several users appreciated the e-bike’s comfortable ride, thanks to the well-designed suspension system and ergonomic saddle.
  • Positive comments were made about the intuitive Shimano display, which provides essential ride information and is easy to read even in varying lighting conditions.
  • Users commended the sturdy frame construction, which enhances durability and stability, especially during off-road adventures.

Overall, the positive feedback from BESV TRX 1.3 LS Electric Bike users indicates a high level of satisfaction with its performance, range, comfort, and build quality.

Negative User Reviews of the BESV TRX 1.3 LS Electric Bike

  • Some users were not satisfied with occasional motor-related issues, such as power fluctuations and inconsistent performance, leading to a less predictable riding experience.
  • Several riders mentioned concerns about the weight of the e-bike, which can be challenging to handle in certain situations, particularly when lifting it onto a rack.
  • Negative comments were made about the e-bike’s assembly process, with a few users finding it more complex than expected, requiring professional assistance.
  • A few users reported discomfort with the saddle and grips, indicating that they may not suit everyone’s preferences, leading to potential upgrades.
  • Some users expressed dissatisfaction with the limited availability of accessories and replacement parts for the BESV TRX 1.3 LS.

While there are some negative aspects mentioned, it’s worth noting that these issues were not widespread among users. The majority of customers seem to have had a positive experience with the BESV TRX 1.3 LS Electric Bike.

BESV TRX 1.3 LS Electric Bike Manual

If you are in need of the BESV TRX 1.3 LS operating instructions, you can find the official manual on the manufacturer’s website. The manual contains essential information on how to operate, maintain, and troubleshoot your electric bike. It’s a valuable resource for understanding the bike’s features and ensuring a smooth riding experience.

BESV TRX 1.3 LS Frequently Asked Questions

1. How do I properly maintain the battery of my BESV TRX 1.3 LS Electric Bike?

Maintaining your battery is crucial for optimal performance. Ensure you charge it regularly, avoid extreme temperature conditions, and follow the manufacturer’s recommendations for storage when not in use.

2. What should I do if I experience motor-related issues, such as power fluctuations?

If you encounter motor-related problems, start by checking cable connections and ensuring the battery is adequately charged. If issues persist, consult the manual for troubleshooting steps or contact customer service.

3. Can I use the BESV TRX 1.3 LS for off-road adventures?

Yes, the BESV TRX 1.3 LS is designed for off-road use with its sturdy frame and capable suspension. However, always ride within the bike’s intended capabilities and adhere to safety guidelines.

4. How do I adjust the suspension settings for a more comfortable ride?

Refer to the manufacturer’s recommendations in the manual for adjusting suspension settings based on your weight, riding style, and terrain. Small adjustments can make a significant difference in comfort.

5. What should I do if I encounter unusual noises from the drivetrain?

If you hear unusual noises, inspect the drivetrain for loose components and proper lubrication. Tighten bolts and ensure the chain is in good condition. If the issue persists, seek professional assistance.


For any problems or concerns with your BESV TRX 1.3 LS Electric Bike, it’s advisable to refer to the manual, reach out to customer service, or visit a certified service center. These resources can provide guidance, troubleshooting steps, and solutions to ensure you enjoy a seamless riding experience with your electric bike.

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