- Class 1
- South Dakota recognizes Class 1 e-bikes as pedal-assist only with assistance ending at 20 mph and motor limits consistent with low-speed e-bike statutes.
- Class 2
- South Dakota Class 2 allows throttle operation with assistance ending at 20 mph.
- Class 3
- South Dakota Class 3 is pedal-assist only up to 28 mph and has additional operating constraints compared with Class 1/2.
- Helmet laws
- South Dakota applies helmet requirements to certain Class 3 riders/passengers under state e-bike provisions.
- Age restrictions
- South Dakota sets a minimum operator age for Class 3 in statute.
- Road access
- Qualifying e-bikes may use roads and bike lanes where bicycles are permitted.
- Trail access
- Class access on shared-use trails may be restricted by local or land-manager authority; posted rules control.
- Sidewalk rules
- City ordinances regulate sidewalks.
- Important notes
- Primary references: S.D. Codified Laws §§32-20B-1–32-20B-8 (electric bicycle classes). Black Hills trail systems and tribal lands add separate postings. Educational summary only—not legal advice.