Motorcycle Accident Settlement Amounts in South Dakota

South Dakota's unusual slight-versus-gross fault rule can bar a claim even when you're under half at fault, and the state caps neither your damages nor the UM/UIM coverage that often funds a motorcycle settlement. Here's what the statutes and state crash data actually say.

ThatCarHitMe.com Editorial
Jul 1, 2026
6 min read

There is no standard figure for a South Dakota motorcycle settlement. What you can actually collect depends on state rules that decide who pays and how much your own share of the blame costs you. Several of those rules are unusual here, and a couple of them can end a claim that would survive almost anywhere else.

Riders carry a large part of that risk. In 2024, motorcycles were involved in just 2.7% of South Dakota crashes but 24.6% of the state's fatal crashes, and 33 motorcyclists were killed on the state's roads.1 A serious motorcycle claim in South Dakota rises or falls on the fault rule below, so start there.

The fault rule that sets the ceiling

South Dakota is the only state that still uses a "slight versus gross" negligence system. Under SDCL 20-9-2, you recover only if your own contributory negligence was "slight" compared with the other driver's, and your damages are then cut in proportion to your share of fault.2 There is no 50% line to fall back on. Whether your fault counts as "slight" is a question the jury answers qualitatively, so it can bar you even when you were well under half responsible. The South Dakota Supreme Court has held that a plaintiff found 30% at fault is "more than slight" as a matter of law, which ends the case with nothing paid.3

That is why fault gets fought so hard in motorcycle cases here. If the insurer can nudge your share past "slight," it owes zero, so a large piece of settlement value is really a bet on how a jury would split the blame. Clean evidence that the other driver caused the wreck is worth more in South Dakota than in a straight percentage state.

The deadline that controls everything

You generally have three years from the date of the crash to file a personal injury lawsuit (SDCL 15-2-14(3)).4 Miss that window and the claim is gone, however serious the injury. Damage to the bike itself runs on a longer clock of six years, because vehicle property damage falls under the state's catch-all for injuring goods or chattels (SDCL 15-2-13(4)).5 If the hurt rider is a minor, the three-year injury clock does not begin until they turn 18 (SDCL 15-2-22).6

Pull the crash report early, since it anchors the fault fight that decides everything else. You can request a South Dakota crash report once it's filed. If your motorcycle lost resale value even after a proper repair, that loss is a separate diminished value claim that runs on the longer six-year clock.

The insurance that funds a settlement

South Dakota is an at-fault state with no personal injury protection requirement, so the at-fault driver's liability insurer pays.7 The legal minimum coverage is 25/50/25: $25,000 per person and $50,000 per crash for injuries, plus $25,000 for property damage (SDCL 32-35-70).8 One night in a hospital after a motorcycle wreck can blow past $25,000, and that minimum is often all a careless driver carries.

This is where your own policy carries the day. Every auto liability policy issued in South Dakota must include uninsured motorist coverage at limits equal to your bodily injury coverage, though insurers are not required to sell UM above $100,000 per person (SDCL 58-11-9), plus underinsured motorist coverage at those same limits (SDCL 58-11-9.4).910 For riders, UM and UIM are often the real source of the money, because motorcyclists are so frequently hit by drivers who carry little or no coverage. One limit to know: you cannot stack your UM and UIM coverage together for a single crash (SDCL 58-11-9.7).11 Medical payments coverage exists only as an optional add-on, not something the law requires.7

South Dakota does not cap what your crash case is worth

For injured riders this part is good news. There is no cap on damages in an ordinary motor vehicle case in South Dakota. The state's former $1 million cap was struck down as unconstitutional in Knowles v. United States, 1996 SD 10, 544 N.W.2d 183.12 The only damages cap left is a $500,000 limit on noneconomic damages that applies only to medical malpractice claims (SDCL 21-3-11), which has no bearing on a motorcycle crash.13 Your medical costs, lost income, and pain and suffering from a wreck are all uncapped.

Punitive damages are on the table when the other driver acted willfully, wantonly, or maliciously, such as a drunk or street-racing driver (SDCL 21-3-2).14 They are not automatic. A judge must first hold a hearing and find, by clear and convincing evidence, a reasonable basis for punitive damages before the question can reach a jury (SDCL 21-1-4.1).15

South Dakota closes off one path some states allow. If a bar over-served the driver who hit you, state law treats the drinking rather than the serving as the legal cause of the crash (SDCL 35-11-1), and it shields licensed vendors from civil liability even when they kept serving an obviously intoxicated patron (SDCL 35-4-78).1617 Your claim for a drunk-driving crash runs against the driver, not the bar that sold the drinks.

Helmets, gear, and the argument you will hear

South Dakota requires a helmet only for riders and passengers under 18 (SDCL 32-20-4); adults may ride legally without one.18 Every rider does need eye protection, either glasses or goggles or a windshield tall enough to serve the purpose (SDCL 32-20-4.1).19 In 2024, 51.2% of the motorcycle drivers in South Dakota crashes were not wearing a helmet.1

Because adults can ride bare-headed and break no law, an insurer cannot treat a missing helmet as an automatic fault deduction. It will still argue that riding without one made your head injuries worse and try to move some blame onto you, which under the slight/gross rule is a real threat. Lane splitting is illegal for everyone in South Dakota (SDCL 32-20-9.3), and a rider caught doing it hands the other side a ready-made fault argument.20

Distracted and impaired drivers

Since 2020, South Dakota has banned using a mobile electronic device while driving, a Class 2 misdemeanor and a primary offense that lets an officer stop a driver for that alone (SDCL 32-26-47.1).21 A distracted-driving citation against the other driver is strong proof the fault was theirs, which matters a great deal when your recovery hinges on keeping your own share "slight." Nationally, motorcyclists are badly overrepresented in traffic deaths: 6,335 were killed across the country in 2023, roughly 15% of all traffic fatalities.22

Getting the documents and the right help

South Dakota crash reports are held by the Department of Public Safety, Office of Accident Records, and the report is usually the first thing an adjuster and a lawyer will read.23 Because the state's fault rule is so unforgiving, careful, well-documented claims are worth far more here than rushed ones, and the help of someone who knows the slight/gross standard counts for a lot. If you're ready for that, you can find a South Dakota attorney.

This article is general information, not legal advice.

Sources

  1. South Dakota Department of Public Safety, Office of Highway Safety/Accident Records, 2024 South Dakota Motor Vehicle Traffic Crash Summary. https://www.safesd.gov/downloads/crash-summary/2024-South-Dakota-Motor-Vehicle-Traffic-Crash-Summary-Facts-Book.pdf

  2. South Dakota Codified Laws 20-9-2 (comparative negligence, reduction of damages). https://sdlegislature.gov/Statutes/20-9-2

  3. Wood v. City of Crooks, 1997 SD 20, 559 N.W.2d 558 (S.D. 1997). https://www.courtlistener.com/opinion/900218/wood-v-city-of-crooks/

  4. South Dakota Codified Laws 15-2-14(3) (three-year limit for personal injury). https://sdlegislature.gov/Statutes/15-2-14

  5. South Dakota Codified Laws 15-2-13(4) (six-year limit for injury to goods and chattels). https://sdlegislature.gov/Statutes/15-2-13

  6. South Dakota Codified Laws 15-2-22 (tolling for minority). https://sdlegislature.gov/Statutes/15-2-22

  7. South Dakota Division of Insurance, automobile insurance consumer guidance. https://dlr.sd.gov/insurance/general_guidance/auto.aspx

  8. South Dakota Codified Laws 32-35-70 (minimum owner's policy limits). https://sdlegislature.gov/Statutes/32-35-70

  9. South Dakota Codified Laws 58-11-9 (uninsured motorist coverage). https://sdlegislature.gov/Statutes/58-11-9

  10. South Dakota Codified Laws 58-11-9.4 (underinsured motorist coverage). https://sdlegislature.gov/Statutes/58-11-9.4

  11. South Dakota Codified Laws 58-11-9.7 (no stacking of UM and UIM). https://sdlegislature.gov/Statutes/58-11-9.7

  12. Knowles v. United States, 1996 SD 10, 544 N.W.2d 183. https://www.courtlistener.com/opinion/7930885/knowles-v-united-states/

  13. South Dakota Codified Laws 21-3-11 (noneconomic damages cap in medical malpractice actions). https://sdlegislature.gov/Statutes/21-3-11

  14. South Dakota Codified Laws 21-3-2 (exemplary damages for oppression, fraud, or malice). https://sdlegislature.gov/Statutes/21-3-2

  15. South Dakota Codified Laws 21-1-4.1 (pretrial hearing for punitive damages). https://sdlegislature.gov/Statutes/21-1-4.1

  16. South Dakota Codified Laws 35-11-1 (consumption, not sale, as proximate cause). https://sdlegislature.gov/Statutes/35-11-1

  17. South Dakota Codified Laws 35-4-78 (no civil liability for licensees). https://sdlegislature.gov/Statutes/35-4-78

  18. South Dakota Codified Laws 32-20-4 (helmet required for persons under 18). https://sdlegislature.gov/Statutes/32-20-4

  19. South Dakota Codified Laws 32-20-4.1 (eye protection required). https://sdlegislature.gov/Statutes/32-20-4.1

  20. South Dakota Codified Laws 32-20-9.3 (motorcycle operation between lanes prohibited). https://sdlegislature.gov/Statutes/32-20-9.3

  21. South Dakota Codified Laws 32-26-47.1 (use of mobile electronic device while driving). https://sdlegislature.gov/Statutes/32-26-47.1

  22. National Highway Traffic Safety Administration, Motorcycles: 2023 Data (Traffic Safety Facts). https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813732

  23. South Dakota Department of Public Safety, Office of Accident Records. https://dps.sd.gov/records/accident-records/report-accident

About This Guide

Written by: ThatCarHitMe.com Editorial

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Motorcycle Accident Settlements in South Dakota