There is one issue that becomes central, particularly in motorcycle accident claims: fault. South Carolina reduces a rider's recovery by their share of the fault and bars recovery only when a rider is 51% or more at fault.
It is common that insurers try to pin extra blame on motorcyclists, which is why it is so important to understand how fault works to protect your claim.
South Carolina follows modified comparative negligence under S.C. Code § 15-38-15. A rider can recover damages as long as their share of the fault is 50% or less, and the recovery is reduced by that percentage. A judge or jury (if the parties don't settle first) is the one who ultimately decides that percentage.
However, the rule has a hard edge. If a rider is found 51% or more at fault, recovery is barred entirely, which is why the fight over each percentage point matters so much in motorcycle cases.
Insurers know this and typically argue the rider shares heavy blame. To make the difference between a reduced recovery and no recovery at all is important to push that percentage down with strong evidence.
Motorcyclists face a bias that car drivers usually do not. After a crash, it is usual that the other driver says the rider was speeding, weaving, or came out of nowhere, even when the driver simply failed to look.
A common line is that the driver never saw the motorcycle. Still, if a driver fails to see a rider, it is not a defense since they are responsible for looking carefully before turning left or changing lanes.
To resist this bias, you will need proof. This includes scene photographs, skid marks, witness statements, and the police report to help show what actually happened instead of letting the driver's version stand unchallenged.
South Carolina's helmet law is age-based, not tied to adulthood generally. Under S.C. Code § 56-5-3660, only riders and passengers under 21 are required to wear an approved helmet; anyone 21 or older may legally ride without one. That means an 18-, 19-, or 20-year-old, a legal adult in every other respect, is still required by law to wear a helmet.
For riders 21 and older who choose not to wear a helmet, that choice does not automatically bar a claim, though an insurer may still raise it when arguing about head-injury damages.
The core question remains who caused the crash. A driver who turned across a rider's path is responsible for that decision regardless of the rider's helmet use, even if helmet use becomes part of the damages discussion.
Mount Pleasant's busiest corridors create predictable risks for riders. US-17, also called Johnnie Dodds and Chuck Dawley Boulevard, carries heavy commuter and tourist traffic with frequent turns and intersections.
The Isle of Palms Connector and Coleman Boulevard funnel beach-bound traffic toward Sullivan's Island and the Isle of Palms, which can mix distracted visitors with local riders. Left-turn collisions, lane-change crashes, and intersection wrecks are common patterns on these routes.
A serious motorcycle crash on one of these roads can send a rider to the hospital with critical injuries. The severity of motorcycle injuries is one reason fault is fought so hard, because the probability of severe injuries for the rider is high.
A motorcycle accident claim can seek medical expenses, lost income, future care, and pain and suffering. Serious crashes tend to involve long recoveries, which makes future medical needs an important part of the picture.
Whatever the total, it is reduced by any share of fault assigned to the rider under the comparative negligence rule. That is why building a strong record on liability protects the value of the claim, not just the right to bring it.
| Fault scenario | Effect under South Carolina law |
|---|---|
| Rider 0% at fault | Full recovery of proven damages |
| Rider 30% at fault | Recovery reduced by 30% |
| Rider 51% or more at fault | Recovery barred entirely |
South Carolina reduces your recovery by your share of fault and bars recovery only if you are 51% or more at fault. You can recover if your share is 50% or less.
Adult riders are not required to wear helmets in South Carolina, and not wearing one does not automatically bar a claim, though it may be raised on damages.
Insurers often try to shift blame to riders. Evidence such as scene photos, witness statements, and the police report helps counter that.
The general deadline in South Carolina is three years from the date of the crash under S.C. Code 15-3-530.
Failing to see a motorcycle does not excuse a driver. Drivers are responsible for looking carefully before turning or changing lanes.
Recovery can include medical bills, lost wages, future care, and pain and suffering, reduced by any share of fault assigned to the rider.
Motorcycle cases are won by controlling the fault narrative early, with evidence that answers the bias riders face. At The Arndt Law Firm, we represent injured riders in Mount Pleasant and across South Carolina to guide and assist them through the claim process.
You can reach out to our motorcycle accident attorneys at (843) 594-1861 to arrange a free consultation and learn more about your options under South Carolina law.
Last reviewed: September 2026
This post was reviewed by Jonathan S. Arndt, licensed in South Carolina since 2018.
Disclaimer: This article is for general informational purposes only and is not legal advice. Reading it does not create an attorney-client relationship with The Arndt Law Firm. Every case is different; for advice about your situation, speak with a licensed attorney.
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