USFS National Forest System Trails · Arapaho and Roosevelt National Forests · Colorado · Updated June 2026
Double Bit (USFS trail 72.1) is a 0.8 mi trail in Arapaho and Roosevelt National Forests, Colorado. Mountain bikes are designated as allowed, Jun–Nov, with Class 1 e-bikes also designated.
Can I bike Double Bit?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Allowed | Jun–Nov |
| Class 1 e-bike (pedal-assist, 20 mph) | Allowed | Jun–Nov |
| Class 2 e-bike (throttle, 20 mph) | Allowed | Jun–Nov |
| Class 3 e-bike (pedal-assist, 28 mph) | Allowed | Jun–Nov |
Zooming out: across Arapaho and Roosevelt National Forests, 99% of rideable trail miles are open to mountain bikes — a Bike Access Grade of A.
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About this trail
Double Bit (USFS trail 72.1) runs 0.8 mi through Arapaho and Roosevelt National Forests in Colorado. The figures here are pulled from the official US Forest Service trail data for Arapaho and Roosevelt National Forests, covering the trail's mileage, tread, grade band, and the bike and e-bike uses the agency lists as designated. The tread is mapped as native material. No grade band is recorded, so a steepness-based difficulty isn't available for this trail. Mountain bikes are allowed, with a Jun–Nov season in the data. On the electric side, Class 1, Class 2, Class 3 e-bikes are also designated (Jun–Nov) — Class 1 being pedal-assist only, Classes 2 and 3 adding a throttle and higher assisted speed. The route is mapped as USFS Trail Class 3 on the agency's 1-to-5 development scale, where 1 is the most primitive, minimally maintained tread and 5 is the most developed. Treat this as a planning reference rather than a live conditions report, and verify any time-sensitive closure or order with the ranger district that manages Arapaho and Roosevelt National Forests.
Frequently asked questions
- Can you mountain bike on Double Bit?
- Yes. Mountain bikes are designated as allowed on Double Bit in Arapaho and Roosevelt National Forests, typically Jun–Nov, per USFS data.
- Are e-bikes allowed on Double Bit?
- Class 1, Class 2, Class 3 e-bikes are designated on Double Bit in the USFS data.
- How long is Double Bit?
- Double Bit measures about 0.8 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Double Bit?
- USFS data records the tread surface of Double Bit as native material.
How we read this data
Grade-based difficulty above is the USFS grade (route steepness), not a technical mountain-bike rating — a gentle-grade trail can still be rocky or technical, and vice versa. Bike and e-bike status come verbatim from the USFS managed-use fields for this trail; we never infer access we can't cite. See our methodology for how the dataset is built and what each field means.
Where it is
Approximate location of Arapaho and Roosevelt National Forests (USFS trail geometry isn't mapped).
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