Defective Bike Claims

Legal Support for Cyclists Injured by A Defective Bike

If your bike has failed due to a defect—whether it’s a cracked frame, faulty brakes, or a component failure, you could be entitled to compensation. At Cycle SOS, we help cyclists injured by defective bikes or parts take legal action against those responsible, whether that’s a manufacturer, retailer, or mechanic.

What is a Defective Bike Claim?

A defective bike claim is a type of personal injury or product liability claim made after an accident caused by a fault in the bicycle or one of its components.

This might include issues with:

  • Frame fractures
  • Faulty brakes or gears
  • Defective e-bike motors
  • Poor assembly by a shop or mechanic
  • Substandard repairs
  • Dangerous upgrades or modifications

These defects can cause serious crashes, even for experienced riders. If the fault lies with the manufacturer, supplier, or repairer, you may be able to claim compensation.

Why Choose Cycle SOS?

Cycle SOS is a specialist team of cycling solicitors. Unlike general personal injury firms, we understand bikes, components, and the mechanics of a crash.

With Cycle SOS you will get:

  • No win, No fee representation—no upfront costs
  • Cyclists and who ride and maintain their own bikes
  • Decades of experience handling complex cycling injury claims
  • Strong links to expert witnesses who can assess faults or failures
  • Partnerships with independent engineers and bike shops
  • We’re trusted Partners with Cycling UK, the national cycling charity
  • Track record of success in complex and high value cycling claims

We’ll investigate how and why the defect occurred and fight to secure the maximum compensation for your injuries, losses, and bike damage.

Who Can I Claim Against?

Liability will depend on the source of the defect. You may be able to make a claim against:

  • The manufacturer – if the bike or component was inherently faulty
  • The retailer or supplier – under the Consumer Protection Act 1987 or Consumer Rights Act 2015
  • The mechanic or repairer – if poor servicing or incorrect installation caused the failure


If you’re unsure who is responsible, we can investigate on your behalf.

Common Types of Bike Defects

Some of the most common defects leading to claims include:

 

  • Cracked or broken carbon frames
  • Faulty quick-release skewers or thru-axles
  • Poorly torqued bolts or loose handlebars
  • E-bike battery, controller, or motor failures
  • Inadequate or failing brakes
  • Defective forks or suspension units
  • Wheels buckling or spokes snapping under normal use

Even high-end bikes can suffer from dangerous faults. If a component fails during normal use and causes injury, you could have grounds for a claim.

Do I Have a Defective Bike Claim?

You may have a valid claim if:

  • You were injured in an accident involving a mechanical failure
  • The failure was due to a fault in manufacturing, supply, or servicing
  • You used the bike as intended and didn’t knowingly ignore a problem


We’ll assess your case and determine if there’s a realistic chance of holding someone liable. Even if the bike is out of warranty, you could still claim under consumer law or personal injury legislation.

What Can I Claim For?

If your claim is successful, you may be entitled to compensation for:

  • Pain, suffering, and loss of amenity
  • Lost earnings (including future loss)
  • Medical and rehabilitation costs
  • Bike repair or replacement
  • Damaged clothing or accessories
  • Travel expenses and care costs


We work to recover the full cost of the accident’s impact on your life.

How to Make a claim for an injury involving a defective bike.

Most of our claims are handled on a No Win, No Fee basis. This means you won’t pay a penny unless your claim is successful.

Start Your Claim Today

If you’ve been injured due to a bike defect or component failure, speak to Cycle SOS today. Our team will assess your case and advise on your options, free of charge.

FAILED COMPONENTS GALLERY

We’ve compiled a gallery of defective components we have photographed as part of real ongoing or concluded cases to help you see what some look like:

This is one of 3 identical failures of an FSA crank spindle/axle caused by a design machining dimension which predicated the part to failure.

This is one of 3 identical failures of an FSA crank spindle/axle caused by a design machining dimension which predicated the part to failure.

This is one of 3 identical failures of an FSA crank spindle/axle caused by a design machining dimension which predicated the part to failure.

Body/Chassis of the pedal detached from spindle which then impaled rider’s leg. Caused by the collapse of the ball race around spindle distally leading to nyloc nut unscrewing. (This highlights the importance of investigating any resistance in rotation of pedal on spindle and/or noise/vibration/harshness).

Body/Chassis of the pedal detached from spindle which then impaled rider’s leg. Caused by the collapse of the ball race around spindle distally leading to nyloc nut unscrewing. (This highlights the importance of investigating any resistance in rotation of pedal on spindle and/or noise/vibration/harshness).

Body/Chassis of the pedal detached from spindle which then impaled rider’s leg. Caused by the collapse of the ball race around spindle distally leading to nyloc nut unscrewing. (This highlights the importance of investigating any resistance in rotation of pedal on spindle and/or noise/vibration/harshness).

Failed Dura-ace crank. Casting issue, fatigue crack nucleation until final catastrophic failure.

Failed Dura-ace crank. Casting issue, fatigue crack nucleation until final catastrophic failure.

Failed Dura-ace crank. Casting issue, fatigue crack nucleation until final catastrophic failure.

Carbon fork spigot failure. Cause: air pocket on stem spigot reduced the contact area of the surfaces to be bonded.

Carbon fork spigot failure. Cause: air pocket on stem spigot reduced the contact area of the surfaces to be bonded.

Two failed steerers. The alloy item on the right is the nucleation of a crack before the final catastrophic failure; the item on the left is a bonding failure between the stub of the alloy stem and the composite steerer.

Failed stem. The bead of weld runs around the circumference but only about 40% of that was welded through fusion of the parent metals.

Failed stem. The bead of weld runs around the circumference but only about 40% of that was welded through fusion of the parent metals.

Steel components failure – welding issues. Destructive testing in the form of sectioning was necessary in order to ascertain that the eventual failure was a direct result of lack of fusion in the weld process. Failure caused by nucleation of an initial crack.

Failure on link on Shimano chain occurred within 10 miles of fitting due to incorrect insertion of rivet/link pin.

Failure on link on Shimano chain occurred within 10 miles of fitting due to incorrect insertion of rivet/link pin.

The L (far side) drop out became unglued; the wheel began to move, the kinetic energy/gyroscopic effect placed a load on the right blade beyond its design parameters.

Contact Cycle SOS Today

If you’ve been involved in an accident, get expert legal support from the cycling injury specialists. Our team will listen, advise and act—so you can focus on your recovery.

We offer No Win, No Fee representation, and we only take on cases where we believe we can make a difference. Call us on 0808 100 9995 or Request on of our team call you back with our online forms.