South Dakota
Last updated
South Dakota runs the standard three-class, 750-watt framework (South Dakota SB 187, effective July 1, 2019) and treats a compliant e-bike as a bicycle: no license, no registration, no insurance, and no title. Class 1 assists only while pedaling up to 20 mph, Class 2 may propel the bike without pedaling up to 20 mph, and Class 3 assists while pedaling up to 28 mph with no throttle, since South Dakota's Class 3 is pedal-assist only, with a required speedometer (SDCL 32-20B-15). No one under 16 may operate a Class 3, though they may ride as passengers on one designed for it, and Class 3 operators under 18 and every Class 3 passenger of any age must wear a helmet; Class 1 and Class 2 carry no state age or helmet rule.
All three classes ride roads and bike lanes under the state's bicycle rules, and bicycles may use sidewalks statewide with pedestrian duties: stop before crosswalks and yield with an audible signal, with city ordinances varying downtown. On bike and multi-use paths, Class 1 and Class 2 are allowed by default, while Class 3 is banned unless the path runs within or adjacent to a highway or the local jurisdiction expressly permits it. The wrinkle is the state's marquee ride: since July 1, 2025, the George S. Mickelson Trail admits Class 1 only (South Dakota SB 79), and riding a Class 2 or Class 3 there is a Class 2 misdemeanor. Over 750 watts or no operable pedals means South Dakota moped or motorcycle rules: driver license, registration, insurance, and an under-18 helmet. Our South Dakota bicycle and e-bike insurance page pairs these rules with the state's best rides, riding season, and events. The full breakdown is below.
South Dakota E-bike Laws
Three classes, no paperwork, and a Class 1-only rule on the Mickelson Trail. Here is where South Dakota stands on e-bikes.
South Dakota runs the standard three-class, 750-watt framework and treats a compliant e-bike as a bicycle: no license, no registration, no insurance, no title. The wrinkle is the state's marquee ride - since July 1, 2025, the George S. Mickelson Trail admits Class 1 e-bikes only (South Dakota SB 79).
The motor assists only while the rider is pedaling and ceases at 20 mph (SDCL 32-20B-9).
The motor may propel the bike without pedaling; assistance ceases at 20 mph.
Pedal assist up to 28 mph and no throttle - South Dakota Class 3 is pedal-assist only, and a speedometer is required equipment (SDCL 32-20B-15).
An e-bike is not a motor vehicle in South Dakota (SDCL 32-14-1), so driver-license rules never attach.
E-bikes are excluded from the title and registration code (SDCL 32-3-1) - no plate, no DMV visit.
The financial responsibility law reaches only motor vehicles - South Dakota mandates no coverage for Class 1, Class 2, or Class 3.
No one under 16 may operate a Class 3, though they may ride as passengers on one designed for it (SDCL 32-20B-13); no age limit for Class 1 or Class 2.
Class 3 operators under 18 and every Class 3 passenger of any age must wear one (SDCL 32-20B-14); no state helmet law for Class 1 or Class 2.
Where You Can Ride
- Roads & bike lanesAll three classes ride under the state's bicycle rules, with the same rights and duties (SDCL 32-20B).
- Bike & multi-use pathsClass 1 and Class 2 are allowed by default; Class 3 is banned unless the path runs within or adjacent to a highway or the local jurisdiction expressly permits it (SDCL 32-20B-12).
- SidewalksBicycles may use sidewalks statewide with pedestrian duties - stop before crosswalks, yield with an audible signal (SDCL 32-20B-2, 32-20B-3); city ordinances vary downtown.
- Mickelson Trail & state trailsClass 1 only on the George S. Mickelson Trail since July 1, 2025 (SDCL 41-17-27); riding a Class 2 or Class 3 there is a Class 2 misdemeanor. Class 3 may use nonmotorized natural-surface trails unless the managing agency prohibits it.
- Out-of-class e-motosOver 750 watts or no operable pedals means South Dakota moped or motorcycle rules: driver license, registration, insurance, and an under-18 helmet.
Effective July 1, 2019 under South Dakota SB 187. Statutes: SDCL 32-20B-9 through 32-20B-15, 32-14-1, 32-3-1, 41-17-27. Cities and park districts can add their own path and trail restrictions — check signage where you ride. Last reviewed July 2026.