Written By Doug Smirnoff

Blix Dubbel Common Problems and Troubleshooting

The Blix Dubbel Electric Bike is a versatile and reliable mode of transportation, designed for both solo and group rides. With a focus on comfort and performance, this electric bike is equipped to handle various terrains while keeping you stylish and efficient. In this article, we’ll explore common problems that Dubbel owners might encounter and provide troubleshooting solutions specific to this model.

Blix Dubbel Overview

The Blix Dubbel is a remarkable electric bike that offers a smooth and upright riding experience. It boasts a range of impressive features:

Electric Battery Motor Display Throttle Controller Sensor Charger
672Wh (48V) 1st battery, front 672Wh (48V) 2nd battery, rear Rear Hub, Geared, 750W Bluetooth Enabled Yes 48V 12 Magnet Cadence Sensor, BB Mount ST, 48V, 2A

  • Shifter: MICROSHIFT 8spd, Thumb Tap trigger shifter
  • Crankset: Alloy 170mm
  • Cassette: 8spd, 11-32T
  • Rear Derailleur: MICROSHIFT 8spd
  • Chain: KMC 8spd
  • Brakes: ZOOM Hydraulic Disc, 180mm rotors
  • Frame: 6061 Aluminum Alloy
  • Fork: Rigid Steel
  • Headset: 1 1/8″ Threadless Internal
  • Wheel & Tire: Kenda 20×3.3″, Puncture resistant
  • Saddle: Comfort Padded
  • Seatpost: 27.2×350mm
  • Stem: 50mm, 0°, 22.2mm clamp
  • Handlebar: 660mm, 149mm rise, 22.2 bar bore
  • Grip: TPR
  • Lights: Front: 80 LUX, Powered by Main Battery; Rear: Sate-Lite M8, Powered by Main Battery
  • Fenders: PVC

Causes of Common Problems with the Blix Dubbel

Before we delve into troubleshooting, let’s explore the potential issues that Blix Dubbel owners may encounter and how to resolve them.

Common Problems with Blix Dubbel and Troubleshooting

1. Battery Not Holding Charge

Description: You notice that your Blix Dubbel’s battery is not holding a charge as well as it used to, resulting in reduced riding range.

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


  1. Check the battery connections to ensure they are secure.
  2. Try charging the battery fully and then discharging it completely a couple of times to recalibrate it.
  3. If the issue persists, consider replacing the battery with a new one from an authorized Blix Dubbel dealer.

2. Motor Not Engaging

Description: Your Blix Dubbel’s motor does not engage when you attempt to accelerate, leaving you to pedal without assistance.

Cause: This problem may occur due to a fault in the motor system or a sensor issue.


  1. Ensure the motor’s power cable and connectors are properly connected.
  2. Check the sensor (12 Magnet Cadence Sensor) for any dirt or debris that might be interfering with its function. Clean it if necessary.
  3. If the problem persists, contact Blix Dubbel customer support for further assistance or motor replacement.

3. Brake Squeaking or Grinding

Description: When you apply the brakes on your Blix Dubbel, you hear squeaking or grinding noises, and braking performance is affected.

Cause: Brake pads can wear down over time, accumulate dirt, or be misaligned, causing noise and reduced braking efficiency.


  1. Inspect the brake pads for wear. If they are significantly worn, replace them with compatible brake pads.
  2. Clean the brake rotors and pads to remove any dirt or debris. Ensure they are properly aligned.
  3. If the problem persists, consider having a professional bike mechanic inspect and service the brakes.

4. Display Connectivity Issues

Description: The Bluetooth-enabled display on your Blix Dubbel experiences connectivity problems, preventing you from accessing ride information or making adjustments.

Cause: Bluetooth interference, outdated firmware, or software glitches can lead to connectivity issues.


  1. Ensure your smartphone or device’s Bluetooth is turned on and in close proximity to the bike’s display.
  2. Check for firmware updates on the display and ensure it is running the latest version.
  3. If problems persist, contact Blix Dubbel support for assistance or potential display replacement.

5. Flat Tire Due to Puncture

Description: You’ve encountered a flat tire on your Blix Dubbel, likely caused by a puncture from sharp objects on the road.

Cause: Riding on rough terrain or encountering sharp objects can lead to tire punctures.


  1. Inspect the tire carefully to locate the puncture. Remove any foreign objects embedded in the tire.
  2. If the puncture is small, you can patch it with a tire repair kit. If it’s a larger hole or the tire is severely damaged, consider replacing the inner tube or tire.
  3. Regularly maintain proper tire pressure to reduce the risk of punctures.

6. Inconsistent Pedal Assistance

Description: You experience erratic pedal assistance levels while riding your Blix Dubbel, making it challenging to maintain a consistent pace.

Cause: This issue may arise from sensor malfunctions or power delivery irregularities.


  1. Inspect the cadence sensor and make sure it’s properly aligned and free from dirt or damage.
  2. Check the connections between the sensor and the controller for loose or damaged wires.
  3. If the problem persists, consider recalibrating the pedal assist settings through the bike’s display.

7. Unusual Noises from the Rear Hub Motor

Description: Unusual grinding or clicking sounds are coming from the rear hub motor of your Blix Dubbel, affecting the overall ride experience.

Cause: Hub motor noise can be caused by wear and tear, loose components, or debris inside the motor.


  1. Inspect the hub motor for loose bolts or components. Tighten them as necessary.
  2. Clean the hub motor area to remove any debris or dirt that might be causing the noise.
  3. If the noise persists, consult a professional technician for a thorough inspection and possible motor maintenance.

8. Display Error Codes

Description: Your Blix Dubbel’s display shows error codes or messages that you don’t understand, causing confusion and concern.

Cause: Error codes can indicate various issues, including sensor malfunctions, electrical problems, or software glitches.


  1. Refer to the user manual to decode the specific error message and its meaning.
  2. If it’s a minor error, try turning off the bike, waiting a few moments, and then turning it back on to see if the issue resolves itself.
  3. If the error persists or is a major fault, contact Blix Dubbel support for guidance or service recommendations.

9. Unresponsive Brakes

Description: Your Blix Dubbel’s brakes feel unresponsive or require excessive force to slow down or stop the bike.

Cause: Brake pad wear, hydraulic fluid issues, or air in the brake lines can lead to unresponsive brakes.


  1. Inspect the brake pads for wear and replace them if they are worn beyond the recommended thickness.
  2. If you have hydraulic brakes, check the brake fluid level and bleed the system if necessary.
  3. Ensure there is no air in the brake lines by performing a brake system bleed or have a professional mechanic do it for you.

10. Uneven Tire Wear

Description: The tires on your Blix Dubbel are wearing unevenly, which can affect ride comfort and stability.

Cause: Misaligned wheels, improper tire pressure, or riding on uneven surfaces can lead to uneven tire wear.


  1. Check the wheel alignment by ensuring that both wheels are properly seated in the frame and that the axles are secure.
  2. Maintain the recommended tire pressure to prevent uneven wear. Refer to the manufacturer’s guidelines.
  3. If you frequently ride on rough terrain, consider rotating your tires periodically to promote even wear.

11. Sudden Loss of Power

Description: While riding your Blix Dubbel, you experience a sudden loss of power, and the bike comes to a halt.

Cause: This issue may occur due to a battery or electrical system malfunction, loose connectors, or overheating.


  1. Check the battery connections and ensure they are securely attached.
  2. Inspect the battery charge level; if it’s low, recharge the battery fully before riding.
  3. If the problem persists, consult a technician to diagnose and resolve the electrical issue.

12. Pedal Assist Delay

Description: You notice a delay in the response of the pedal assist system when you start pedaling on your Blix Dubbel.

Cause: This delay can be caused by software lag, sensor calibration issues, or low battery power.


  1. Ensure your battery is adequately charged before riding to eliminate low battery power as a cause.
  2. Check for any available firmware updates for the pedal assist system and install them if necessary.
  3. If the issue persists, recalibrate the pedal assist sensor or contact Blix Dubbel support for assistance.

13. Loose Handlebars or Stem

Description: The handlebars or stem of your Blix Dubbel become loose, affecting steering control and stability.

Cause: Vibrations from riding on rough terrain or insufficiently tightened components can lead to handlebar or stem looseness.


  1. Inspect the stem and handlebar bolts for tightness; tighten them to the manufacturer’s specifications if necessary.
  2. Ensure that the stem is properly aligned with the front wheel to prevent wobbling.
  3. Regularly check for loosening components during routine maintenance to prevent future issues.

14. Chain Skipping Gears

Description: Your Blix Dubbel’s chain skips gears unexpectedly, making gear shifting unreliable and affecting your riding experience.

Cause: Chain wear, misalignment, or a malfunctioning derailleur can lead to gear skipping.


  1. Inspect the chain for signs of wear and replace it if it’s stretched or damaged.
  2. Ensure the rear derailleur is properly aligned and that the gear cable tension is adjusted correctly.
  3. If gear skipping continues, consider having a bike mechanic perform a thorough inspection and adjustment.

15. Uncomfortable Saddle

Description: The saddle of your Blix Dubbel causes discomfort or pain during longer rides.

Cause: Saddle discomfort can be due to improper positioning, lack of padding, or personal preferences.


  1. Adjust the saddle height and angle to find a position that suits your body and riding style.
  2. If the saddle lacks padding, consider installing a gel cover or replacing it with a more comfortable saddle.
  3. Experiment with different saddle designs and styles to find one that provides better comfort during rides.

16. Excessive Chain Noise

Description: You notice loud clicking or grinding noises coming from the chain while pedaling your Blix Dubbel.

Cause: Chain noise can result from insufficient lubrication, misalignment, or a worn chain.


  1. Lubricate the chain with a high-quality bicycle chain lubricant to reduce friction and noise.
  2. Check the chain’s tension and alignment; make adjustments as needed to ensure it runs smoothly on the gears.
  3. If the noise persists, inspect the chain for wear and consider replacing it if it’s stretched or damaged.

17. Rattling Fenders

Description: The fenders on your Blix Dubbel rattle or vibrate, creating an annoying noise during rides.

Cause: Loose fender bolts or insufficient attachment can lead to fender rattling.


  1. Check and tighten all fender bolts to ensure they are secure and properly fastened to the bike frame.
  2. Inspect the fender brackets and supports for any signs of damage or misalignment.
  3. If rattling continues, consider adding foam or rubber padding between contact points to dampen vibrations.

18. Difficulty Shifting Gears

Description: Shifting gears on your Blix Dubbel becomes challenging, with gears not engaging smoothly.

Cause: Gear shifting problems can occur due to cable tension issues, a misaligned derailleur, or a worn drivetrain.


  1. Check the cable tension for the rear derailleur and adjust it if necessary to ensure precise gear shifting.
  2. Inspect the alignment of the rear derailleur; make adjustments to ensure it lines up with the gear cogs.
  3. If gear shifting problems persist, consider replacing worn components like the chain or cassette.

19. Loose Pedals

Description: The pedals on your Blix Dubbel feel loose or wobbly while pedaling.

Cause: Loose pedal threads, worn pedal bearings, or insufficient pedal installation can result in pedal looseness.


  1. Tighten the pedal threads using a pedal wrench or a suitable tool to ensure they are securely attached to the crank arms.
  2. If pedal looseness continues, inspect the pedal bearings for wear and replace them if necessary.
  3. Ensure pedals are correctly installed, with the left pedal on the left crank arm and the right pedal on the right crank arm.

20. Insufficient Front Light Illumination

Description: The front light on your Blix Dubbel doesn’t provide sufficient illumination for night riding.

Cause: This issue can be caused by a weak battery, loose connections, or a malfunctioning front light.


  1. Check the battery charge level and recharge it fully to ensure the front light receives adequate power.
  2. Inspect the connections between the front light and its power source to ensure they are secure and free from corrosion.
  3. If the problem persists, consider replacing the front light with a compatible, higher-quality lighting system.

21. Loose or Noisy Pedal Cranks

Description: You notice that the pedal cranks on your Blix Dubbel feel loose or produce clicking or creaking sounds during pedaling.

Cause: Loose crank arms, worn bottom bracket, or insufficient lubrication can lead to this issue.


  1. Check the crank arm bolts and tighten them to the manufacturer’s recommended torque settings.
  2. If the problem persists, inspect the bottom bracket for wear and replace it if necessary.
  3. Lubricate the pedal crank threads and the bottom bracket to reduce friction and noise.

22. Erratic Speed Readings on Display

Description: The speed readings on your Blix Dubbel’s display are erratic or inaccurate, making it challenging to monitor your speed.

Cause: Sensor malfunctions or interference with the speed sensor can lead to inaccurate speed readings.


  1. Check the speed sensor’s alignment and make sure it is positioned correctly near the bike’s wheel hub.
  2. Ensure there are no obstacles or debris obstructing the speed sensor’s operation.
  3. If speed reading issues persist, contact Blix Dubbel support for sensor diagnostics and possible replacement.

23. Unresponsive Display Touchscreen

Description: The touchscreen on your Blix Dubbel’s display does not respond to touch inputs, preventing you from accessing settings or information.

Cause: Display touchscreen issues can result from software glitches, calibration problems, or physical damage.


  1. Power cycle the display by turning it off and then back on to see if it resolves the unresponsiveness.
  2. Check the display settings for touchscreen calibration options and recalibrate the touchscreen if available.
  3. If the issue persists, consider replacing the display unit with a compatible one.

24. Front Fork Suspension Problems

Description: You experience issues with the front fork suspension on your Blix Dubbel, such as excessive bouncing or stiffness.

Cause: Front fork suspension problems can occur due to improper adjustments, lack of maintenance, or worn suspension components.


  1. Check the suspension fork’s settings and adjust the preload or damping to achieve the desired level of comfort and performance.
  2. Regularly clean and lubricate the suspension fork stanchions to prevent stiction and ensure smooth operation.
  3. If suspension issues persist, consider having a bike shop technician inspect and service the front fork.

25. Loose or Worn Headset Bearings

Description: You notice play or clicking sounds in the headset area of your Blix Dubbel, affecting steering stability.

Cause: Loose or worn headset bearings can lead to headset issues, causing play and noise.


  1. Inspect the headset bearings for tightness; tighten them to the manufacturer’s specifications if necessary.
  2. If the bearings are worn or damaged, consider replacing them with compatible headset bearings.
  3. Ensure the headset components are correctly aligned to prevent steering issues.

Blix Dubbel Electric Bike User Reviews

When considering the purchase of an electric bike like the Blix Dubbel, it’s essential to gather insights from users who have experienced it firsthand. This section provides an overview of user reviews for the Blix Dubbel Electric Bike, highlighting both positive and negative feedback. The information presented here is based on reviews from Walmart.com, giving you valuable insights into the real-world experiences of Blix Dubbel owners.

Positive Reviews from Blix Dubbel Electric Bike Users

While individual experiences may vary, some users were satisfied with the following parameters associated with the Blix Dubbel Electric Bike:

  • Impressive Battery Life: Many riders praised the long-lasting battery, allowing for extended rides without frequent recharging.
  • Comfortable Ride: Users appreciated the comfortable saddle and suspension, making it ideal for long journeys on various terrains.
  • Powerful Motor: Several reviews highlighted the bike’s powerful motor, providing smooth and reliable assistance during rides.
  • Sturdy Build: The sturdy construction of the Blix Dubbel was often commended for its durability and stability.
  • Ample Cargo Capacity: Riders who required extra cargo space found the 200 lbs capacity and rear seat of the Blix Dubbel to be incredibly convenient.

Overall, positive feedback indicates that many users enjoyed a pleasant riding experience and found the Blix Dubbel Electric Bike to be a reliable and comfortable mode of transportation.

Negative User Reviews of the Blix Dubbel Electric Bike

While the majority of users had positive experiences, some users were not satisfied with the following problems associated with the Blix Dubbel Electric Bike:

  • Electrical Malfunctions: A few users reported issues with the bike’s electrical components, such as the display or motor, malfunctioning after a short period of use.
  • Weight and Size: Some riders found the Blix Dubbel to be relatively heavy and bulky, making it less convenient for storage and transport.
  • Price: A few users mentioned that the Blix Dubbel Electric Bike is relatively expensive compared to other electric bike models on the market.
  • Complex Assembly: Several reviewers found the assembly process to be challenging and time-consuming, requiring professional assistance.
  • Limited Service Centers: Users in certain areas faced challenges finding local service centers for maintenance and repairs.

While negative feedback exists, it’s worth noting that these issues were reported by a minority of users. Many Blix Dubbel owners have had positive experiences with their bikes.

The majority of users were satisfied with their Blix Dubbel Electric Bike, highlighting its impressive battery life, comfort, power, build quality, and cargo capacity. While some negative feedback exists, it represents a minority of users, and most Blix Dubbel owners enjoy a reliable and enjoyable riding experience.

Blix Dubbel Electric Bike Manual

The operating instructions and user manual for the Blix Dubbel Electric Bike can be found on the manufacturer’s official website. For detailed guidance on assembly, operation, maintenance, and safety precautions, we recommend visiting the Blix website and accessing the official manual. It’s a valuable resource to ensure that you get the most out of your Blix Dubbel Electric Bike while maintaining safety and performance.

Blix Dubbel Frequently Asked Questions

1. How far can I travel on a single charge with the Blix Dubbel Electric Bike?

The Blix Dubbel offers an impressive range of up to 80 miles on a single charge, thanks to its 672Wh dual batteries. However, actual range may vary depending on factors such as rider weight, terrain, and pedal assist levels.

2. Is the Blix Dubbel suitable for off-road riding?

While the Blix Dubbel is designed primarily for on-road use, its sturdy construction and fat tires make it capable of handling light off-road terrain. However, it’s important to exercise caution and avoid extremely rough or challenging trails to ensure the bike’s longevity.

3. Can I adjust the level of pedal assistance on the Blix Dubbel?

Yes, the Blix Dubbel offers multiple levels of pedal assistance that you can adjust through the bike’s display. You can choose the level of assistance that suits your riding style and preferences, whether you want a more relaxed or sportier ride.

4. What should I do if I experience a flat tire on my Blix Dubbel?

If you encounter a flat tire, you can refer to the user manual for guidance on tire maintenance and repair. It’s advisable to carry a tire repair kit and tools with you during rides for minor repairs. In case of severe damage, consider replacing the inner tube or tire.

5. How do I troubleshoot common electrical issues with the Blix Dubbel?

If you experience electrical problems such as motor or display malfunctions, first check the battery connections and ensure they are secure. If issues persist, consult the user manual for troubleshooting tips or contact Blix Dubbel customer service for further assistance.


For any issues or questions related to your Blix Dubbel Electric Bike, always refer to the manual, contact the customer service, or visit a certified service center when necessary. These resources can provide you with expert guidance and solutions to ensure your Blix Dubbel continues to provide a reliable and enjoyable riding experience.

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