USFS National Forest System Trails · Montana · Updated June 2026
Are E-Bikes Allowed in Helena-Lewis and Clark National Forest, Montana?
In Helena-Lewis and Clark National Forest (Montana), e-bikes are designated on specific trails only: Class 1 on 323 segments (1,178 mi), Class 2 on 323, and Class 3 on 323. On Forest Service land e-bikes are motor vehicles, allowed only where designated.
On National Forest System land, e-bikes are legally motor vehicles. Under U.S. Forest Service policy (36 CFR 212; FSM 7700), an e-bike of any class may be ridden only on routes that are designated for motor-vehicle use or specifically designated for e-bike use — not on every trail where a conventional (non-motorized) mountain bike is allowed.
E-bike classes in Helena-Lewis and Clark National Forest
- Class 1 — 323 segments (1,178 mi)
- Pedal-assist only, motor cuts out at 20 mph, no throttle.
- Class 2 — 323 segments (1,178 mi)
- Throttle-assist up to 20 mph (can propel without pedaling).
- Class 3 — 323 segments (1,178 mi)
- Pedal-assist up to 28 mph, no throttle.
For the per-class breakdown by trail and season, see the Helena-Lewis and Clark National Forest e-bike rules page.
Frequently asked questions
- How many miles of mountain bike trail are in Helena-Lewis and Clark National Forest?
- Helena-Lewis and Clark National Forest has about 2,202 mi of bike-designated trail across 497 segments, out of 3,588 mi of total National Forest System trail.
- Are e-bikes allowed in Helena-Lewis and Clark National Forest?
- Only where designated — on Forest Service land e-bikes are motor vehicles. Class 1 e-bikes are recorded on 323 segments here.