When Motorcycle Defect Claims Become Possible
Motorcycle defect claims become possible when a part of the bike or the rider’s gear failed in a way that caused or worsened the crash. A brake line that burst, a wheel that cracked or a throttle that stuck can point to a defect. So can a helmet that failed under ordinary conditions. Yet crash damage alone does not show a defect, so these claims depend on careful inspection and on ruling out other causes.
A defect claim is separate from any claim against another driver. Both can exist after the same crash.
California Product Liability Basics
California recognized strict liability for defective products in Greenman v. Yuba Power Products in 1963. Under that line of cases, a manufacturer can be responsible for injuries caused by a defect without proof that it was careless. Later decisions extended the rule to retailers and others in the chain of distribution.
Courts generally recognize manufacturing defects, design defects and failures to warn.
For design claims, the Barker decision of 1978 set out two tests. The Soule decision of 1994 later limited one of them to cases within ordinary consumer experience. For the general rules, see California product injury claims.
Preserving Components for Motorcycle Defect Claims
The bike is the most important evidence. Keep it unrepaired and in a safe place until a qualified examiner can inspect it. If an insurer wants to total the bike, tell the insurer in writing that you need it preserved.
Removed parts need care as well. A shop that replaces a part should save the old one, bagged and labeled. Ask for that in writing before any work begins.
Gear counts too. Keep the helmet, gloves, jacket and boots exactly as they were after the crash. Do not clean, repair or throw them away. If evidence is lost, California Evidence Code section 413 can let a jury consider whether a party willfully suppressed it, and the loss can hurt the person who had control of it.
Maintenance History
Maintenance records help answer an early question. Did the part fail because of a defect or because of wear, poor repair or modification? Service receipts, parts invoices and owner’s manual schedules all help.
Aftermarket parts raise their own issues. A modified exhaust or a replaced brake line may shift attention to whoever made or installed that part. List every change made to the bike since purchase.
Recalls and Safety Notices
Check whether the bike or its gear has an open recall. The National Highway Traffic Safety Administration keeps a public recall lookup that searches by vehicle identification number. Helmets and other equipment can also be subject to recalls.
A recall can be strong evidence that a problem existed. However, it does not prove that the recalled defect caused this crash. Likewise, the absence of a recall does not rule out a defect.
Misuse Versus Defect
Manufacturers often argue that the rider misused the bike. Overloading, racing, poor maintenance or using parts in ways the maker never intended may all come up. Under Daly v. General Motors, California applies comparative fault in strict product liability cases, so a rider’s conduct can reduce a recovery without ending it.
That is why a full picture matters. The examiner looks at the part, the maintenance history and the crash itself. Then the examiner tests whether the failure happened before the crash or because of it.
Who May Be Responsible
A defect claim may name more than the company whose logo is on the tank. Parts makers, distributors and the dealer that sold the bike can all be in the chain of distribution. The Vandermark decision of 1964 extended strict liability to retailers, which is why dealers often appear in these cases.
A repair shop is different. Its liability usually turns on whether the work was careless, so the shop’s records and the mechanic’s notes matter.
Qualified Inspection
Inspections should follow a written protocol. All parties who may be responsible should get notice and a chance to attend. That avoids later fights over whether the testing changed the evidence.
Do not take the bike apart yourself. Even well meant cleaning or tightening can erase marks an engineer needs. Photographs, by contrast, are fine and helpful.
Combining Defect and Driver Claims
A crash can involve both a careless driver and a defective part. For example, a driver may cut off a rider whose brakes then fail. Each party may share responsibility for the harm.
California’s fault rules apply to those combinations, and Civil Code section 1431.2 affects how noneconomic damages are divided. The general rule is in California comparative negligence. For helmet questions, see motorcycle helmet injury claims.
Steps for Motorcycle Defect Claims
Write down the bike’s make, model, year and identification number. Note the mileage and any warning signs before the crash, such as a soft brake lever. Keep every receipt.
Then preserve the bike and gear, check for recalls and keep records of anyone who handled the bike after the crash. Deadlines apply to product claims as well, so do not let the inspection process delay legal advice.
This article is general information, not legal advice. Laws change and every situation is different.