The rule, briefly

Illinois applies the same modified comparative negligence rule to riders as to everyone else. Under 735 ILCS 5/2-1116 your damages are reduced by your share of the fault, and barred only where that share is more than 50%. At exactly 50% you still recover half.

That rule is explained in full, with worked figures, in the Illinois 51% fault rule. This article is about something different: the fault arguments made specifically against motorcyclists, which differ from those made against drivers and which do most of the damage in rider cases.

The assumption problem

Riders begin at a disadvantage that has nothing to do with the evidence. There is a widely held view that motorcyclists are fast, that they weave, and that a crash probably involved something reckless. It surfaces in adjusters’ opening positions and it can surface in a jury box.

It matters because comparative fault is not decided by machine. Somebody assigns a percentage, and unexamined assumptions move that number. The counter is not indignation; it is evidence gathered early enough to be specific.

“I didn’t see the motorcycle”

This is the single most common account given by a driver who turns across a rider’s path. It is worth being clear about what it means legally.

Failing to see a vehicle that was there to be seen is not an excuse for the collision. It is a description of the failure. A driver’s duty is to look effectively before turning or emerging, and an admission that they did not see an approaching motorcycle is generally an admission that they did not discharge that duty.

Insurers nevertheless deploy it as though it shifts responsibility to the rider, usually paired with a suggestion that the rider must have been going too fast to be seen. That pairing should be treated as a single argument and answered as one.

Speed estimates are the weak point

Witnesses are poor at estimating the speed of motorcycles. A small frontal area and rapid closing rate make a bike look faster than it is, and estimates given at the scene by a shaken driver are routinely repeated later as established fact.

What actually tests a speed allegation:

• Scene measurements and the physical evidence of the impact.
• Damage patterns on both vehicles.
• Camera footage, which is commonly overwritten within days.
• Vehicle data, where the car involved records it.

All of it expires quickly, which is why a speed allegation left unanswered for months tends to harden into the agreed version of events. How fault percentages are set in practice is covered in how fault is decided.

Helmets: what the law does and does not say

Illinois has no statewide helmet requirement. The Vehicle Code requires eye protection under 625 ILCS 5/11-1404 and imposes no helmet obligation, as set out in Illinois motorcycle laws.

Riders reasonably ask whether an insurer can still use the absence of a helmet to reduce a claim. Here is the honest position.

For seat belts, the legislature dealt with the point expressly. 625 ILCS 5/12-603.1(c) provides that failure to wear a seat belt is not evidence of negligence and may not be used to reduce recovery. There is no equivalent provision for helmets in the Vehicle Code.

That contrast is the whole of what can be said with confidence from the statutes. It does not follow that helmet non-use can be used against a rider, and this article does not say so. It means the question is not answered by a statute the way the seat belt question is, and a rider facing that argument should take advice on it rather than assume the outcome either way.

Two related points are clearer. Not wearing a helmet has nothing to do with causing a crash, so it cannot bear on liability for the collision itself. And where a rider was wearing a helmet, that fact is worth establishing early, because the argument then does not arise at all.

Lane position and conspicuity

Expect arguments that a rider was in the wrong part of the lane, was in a blind spot, or was hard to see because of clothing. These are worth separating:

• Lane position within a lane is generally lawful. A rider is entitled to the full lane, and choosing a position in it is ordinary riding, not a violation.
• Filtering between lanes is different, because 625 ILCS 5/11-703(c) requires an unobstructed lane for a two-wheeled vehicle to pass on the right.
• Conspicuity arguments cut both ways. A driver’s duty to look does not depend on the rider wearing bright clothing.

What your share actually costs you

Because riders are so often assigned some share, it is worth being concrete. On $400,000 of proved damages:

Every ten points is $40,000 on these figures, and the last single point is everything. That is why arguments a rider might be tempted to shrug off are worth contesting properly.

తరచుగా అడిగే ప్రశ్నలు

Talk to an Elmwood Park motorcycle accident lawyer

Rider cases are rarely lost on the law of comparative fault, which is the same for everyone. They are lost on the percentage, and the percentage moves on assumptions unless somebody puts evidence in front of them quickly.

If you were hurt riding in Elmwood Park, Oak Lawn, Skokie, Niles, Orland Park or anywhere in Cook County, Lawyer Furqan will contest the rider-blaming arguments with measurements and footage rather than leaving them to stand.

Call 847-800-8978 or contact us online. The consultation is free, there is nothing upfront, and you owe no attorney’s fee unless we win.

Sources and authorities cited

• 735 ILCS 5/2-1116 · damages reduced by the plaintiff’s share, barred above 50%
• 625 ILCS 5/12-603.1(c) · seat belt non-use is not evidence of negligence; no equivalent provision exists for helmets
• 625 ILCS 5/11-1404 · eye protection required; no helmet requirement in the Code
• 625 ILCS 5/11-703(c) · passing on the right by a two-wheeled vehicle

This article is general legal information about Illinois law, not legal advice, and creates no attorney-client relationship. Whether helmet use may bear on damages in a given case is not settled by the statutes discussed here, and nothing in this article predicts a result.