What Is Pure Comparative Fault in Missouri Motorcycle Cases?

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May 11, 2026

How Pure Comparative Fault Affects Your Missouri Motorcycle Crash Claim

If you were injured in a motorcycle accident in St. Louis and were told you cannot recover compensation because you were partially at fault, that is not how Missouri law works. Missouri follows a pure comparative fault system, which means your recovery is reduced by your percentage of fault but not eliminated. Even if you bear significant responsibility for the crash, you may still collect a proportionate share of your damages. Understanding how this doctrine applies to your motorcycle crash claim in St. Louis can make the difference between receiving no compensation and securing the financial recovery you need.

If you were hurt in a motorcycle crash and have questions about how fault may affect your claim, Halvorsen Klote Davis can help you understand your options. Call (314) 451-1314 or reach out online to get started.

helmeted motorcyclist riding black motorcycle through urban pedestrian crosswalk intersection

What Pure Comparative Fault Means for Motorcycle Accident Lawyers in St. Louis

Pure comparative fault is a legal doctrine that allows an injured person to recover damages even when they share some blame for the accident. Under this rule, a plaintiff’s compensation is reduced in proportion to their degree of fault, but there is no threshold that bars recovery. Missouri adopted this system through Gustafson v. Benda, 661 S.W.2d 11 (Mo. banc 1983), which replaced the older contributory negligence rule that completely prevented recovery if an injured person bore even minimal fault.

The Missouri legislature codified pure comparative fault for products liability claims in RSMo §537.765. That statute abolished contributory fault as a complete bar to recovery and provides that any fault chargeable to the plaintiff shall diminish proportionately the compensatory damages but shall not bar recovery. For motorcycle accident cases involving general negligence, the pure comparative fault doctrine flows from Gustafson and applies equally.

💡 Pro Tip: Insurance adjusters sometimes tell injured motorcyclists that accepting any fault means they lose their claim. Under Missouri’s pure comparative fault system, that is not accurate. Document every detail of the crash so your attorney can fight inflated fault allegations.

How Fault Is Divided After a Motorcycle Crash in Missouri

Before fault percentages are assigned, the foundational elements of negligence must be established. A plaintiff must prove that the other party owed a duty of care, breached that duty, that the breach caused the injuries, and that quantifiable damages resulted. Only after these elements are satisfied does the trier of fact divide responsibility among the parties.

What Counts as "Fault" Under Missouri Law

Missouri defines fault broadly, though the specific definition varies by claim type. In products liability cases, RSMo §537.765(3) defines "fault" as limited to: (1) failure to use the product as reasonably anticipated by the manufacturer; (2) use of the product for a purpose not intended by the manufacturer; (3) use of the product with knowledge of a danger involved in such use with reasonable appreciation of the consequences and the voluntary and unreasonable exposure to said danger; (4) unreasonable failure to appreciate the danger involved in use of the product or the consequences thereof and the unreasonable exposure to said danger; and (5) failure to undertake the precautions a reasonably careful user of the product would take to protect himself against dangers which he would reasonably appreciate under the same or similar circumstances. In general negligence motorcycle cases, the definition comes from the Uniform Comparative Fault Act adopted in Gustafson, which encompasses acts or omissions that are negligent or reckless, unreasonable assumption of risk, and failure to avoid injury. Fault can arise when an insurer argues that a rider was not wearing proper gear, was speeding, or failed to take evasive action. Comparative fault is an affirmative defense, meaning the defendant must plead and prove the plaintiff’s alleged fault.

A Practical Example of Fault Allocation

Consider a scenario where a driver turns left in front of a motorcyclist at a St. Louis intersection. A jury might find the driver 70% at fault for failing to yield and the rider 30% at fault for exceeding the speed limit. If total damages amount to $200,000, the rider’s recovery would be reduced by 30%, resulting in a $140,000 award. Under pure comparative fault, even a rider found 80% or 90% at fault could still recover the remaining percentage of damages.

Scenario Plaintiff Fault Total Damages Recovery After Reduction
Driver fails to yield; rider speeding 30% $200,000 $140,000
Lane-change collision; rider following closely 50% $150,000 $75,000
Rider mostly at fault but other driver ran red light 80% $100,000 $20,000

💡 Pro Tip: Gather crash evidence including photos of the scene, witness contact information, and the police report. This evidence is critical to contesting inflated fault percentages that insurers may assign to you as a rider.

How Missouri Differs from Contributory and Modified Negligence States

Not every state gives injured motorcyclists the same opportunity to recover damages that Missouri does. Under contributory negligence, a plaintiff who is even 1% at fault is completely barred from recovery. Modified comparative negligence states use a cutoff, typically at 50% or 51% fault, beyond which a plaintiff recovers nothing.

Missouri’s pure comparative negligence approach stands apart because it imposes no such bar. A plaintiff can be 99% at fault and still collect 1% of their damages. For motorcyclists, who often face unfair bias from jurors and insurers, this distinction is particularly meaningful. Riders are frequently blamed for crashes simply because motorcycles are perceived as dangerous.

💡 Pro Tip: If an insurance company pressures you to give a recorded statement shortly after a crash, be cautious. Anything you say can be used to inflate your fault percentage. Consult with a Missouri motorcycle injury attorney before making any statements.

Joint and Several Liability: What Happens When Multiple Parties Share Fault

In many motorcycle accidents, more than one party may bear responsibility. Missouri law addresses this through RSMo §537.067, which governs joint and several liability. If a defendant is found to bear 51% or more of the fault, that defendant is jointly and severally liable for the full compensatory damages judgment. This means the plaintiff can collect the entire compensatory award from that single defendant, providing an important safeguard when one at-fault party lacks sufficient insurance or assets.

A defendant found to bear less than 51% of fault is only severally liable for their percentage of the judgment. Punitive damages follow a different rule: under RSMo §537.067(2), each defendant is only severally liable for punitive damages, and their share is determined by the percentage of fault attributed to that defendant by the trier of fact. Understanding these distinctions matters when your motorcycle crash involves multiple vehicles, a manufacturer, or a government entity responsible for road conditions.

Why This Matters for Riders With Serious Injuries

Motorcycle crashes frequently result in catastrophic injuries, and the stakes of fault allocation are high. When medical bills, lost wages, and long-term rehabilitation costs are substantial, knowing which defendants can be held responsible for the full judgment may shape your entire litigation strategy. An experienced motorcycle accident lawyer in St. Louis can evaluate these factors and pursue claims against all responsible parties.

Missouri’s Statute of Limitations for Motorcycle Accident Claims

Time limits apply to every motorcycle injury lawsuit in Missouri. Under RSMo §516.120(4), the statute of limitations for personal injury claims, including those arising from motorcycle accidents, is five years from the date of injury. While five years may seem generous, evidence deteriorates, witnesses become harder to locate, and delays can weaken your case.

Courts generally interpret exceptions to the statute of limitations narrowly. While tolling provisions or discovery rules may apply in limited circumstances, you should not assume that any deadline extension is automatic. Acting promptly protects both your evidence and your legal rights.

💡 Pro Tip: Even though Missouri allows five years, starting your claim early preserves key evidence such as surveillance footage, electronic vehicle data, and witness memories. The sooner you begin, the stronger your case.

The Role of Case Law in Missouri Motorcycle Fault Disputes

Missouri courts have addressed comparative fault in motorcycle-related litigation. The appellate decision in McDowell v. Kawasaki Motors Corp. USA, 799 S.W.2d 854 (Mo. App. W.D. 1990), involved a motorcycle manufacturer and a product-related claim concerning a defective fairing bracket, but the case did not address fault allocation — no comparative fault issue was submitted because neither defendant raised any claim of negligence on the part of the plaintiff.

The interplay between RSMo §537.765, which governs products liability comparative fault, and the broader Gustafson doctrine for general negligence means that the legal framework may differ depending on your claim’s nature. If your crash involved a defective motorcycle part, the products liability statute applies. If your crash involved another driver’s negligence, the case-law doctrine controls. In either situation, Missouri’s pure comparative fault principle works in the injured rider’s favor.

💡 Pro Tip: If your crash may have been caused partly by a defective motorcycle component and partly by another driver’s negligence, you may have claims under both products liability and general negligence theories. Pursuing both avenues can maximize your potential recovery. Visit our motorcycle accident blog for more information on building a strong claim.

Frequently Asked Questions

1. Can I still recover compensation if I was partially at fault for my motorcycle accident in Missouri?

Yes. Missouri’s pure comparative fault system, established by Gustafson v. Benda and codified for products liability in RSMo §537.765, reduces your damages by your percentage of fault but does not bar recovery. Even a plaintiff found 99% at fault may collect the remaining 1% of damages.

2. Who has to prove that I was at fault for the motorcycle crash?

The defendant bears the burden of proof. Under RSMo §537.765(2), comparative fault is an affirmative defense in products liability cases, meaning the other side must plead and prove your alleged fault. Missouri courts apply the same principle in general negligence cases.

3. What is the deadline for filing a motorcycle accident lawsuit in St. Louis?

Missouri imposes a five-year statute of limitations for personal injury claims under RSMo §516.120(4). However, specific circumstances may affect this timeline. Consulting with an attorney promptly helps ensure you do not miss critical filing windows.

4. How does joint and several liability work if multiple parties caused my motorcycle crash?

Under RSMo §537.067, a defendant found 51% or more at fault is jointly and severally liable for the full compensatory judgment. A defendant below that threshold pays only their proportionate share. Punitive damages are several only, and each defendant’s share is determined by the percentage of fault attributed to that defendant by the trier of fact.

5. Does Missouri’s comparative fault rule apply differently in product defect motorcycle cases?

The core principle is the same, but the legal source differs. RSMo §537.765 specifically governs pure comparative fault in products liability claims. General negligence motorcycle cases rely on the Gustafson v. Benda doctrine. Both systems reduce damages by the plaintiff’s fault percentage without barring recovery.

Protecting Your Right to Compensation After a Motorcycle Crash

Missouri’s pure comparative fault framework gives injured motorcyclists a meaningful opportunity to recover damages, even when fault is shared. From the statutory protections of RSMo §537.765 and RSMo §537.067 to the foundational case law of Gustafson v. Benda, the law ensures that an injured rider’s compensation reflects the true allocation of responsibility. The key to maximizing your recovery is building a strong evidentiary record, understanding how fault is divided, and acting within applicable deadlines.

If you or a loved one was injured in a motorcycle crash in St. Louis, Halvorsen Klote Davis is ready to help you navigate the comparative fault process and fight for the compensation you deserve. Call (314) 451-1314 or contact us today to discuss your case.

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