Colorado has tons of spots that are e-bike friendly although Salida is not necessarily one. I ride in Salida on a full powered bike and have had only one person bring up the fact that they aren't "allowed" in the area. The town trails do have a fair amount of signage listing e-bikes as not allowed. Most of the trails are on USFS lands and that policy applies. There is absolutely no enforcement and only 5% of riders you encounter like to tell you about the "rules". You will also find a ton of other riders on class 1's. If you are looking for places where the are explicitly allowed you should check out:
- Denver/Boulder Front Range trials
- Virginia Canyon/Maryland Mountain
- All of Jefferson County Open Space trails (not Buffalo Creek)
- Dillon Reservoir
- Beaver Creek, Vail, and Arrowhead Mountain ski areas
- Trestle Bike Park
- Riffle Grand Hogback
- Grand Junction Third Flats (not Lunch Loops)
- Fruita (technically only 18 road and Rabbit Valley) but Loma and Mack are busy with class 1's
- Crested Butte has a bunch of trails that are "motorized" Teocalli Ridge, Double Top, Deadman's and others in Brush and Cement Creek
- Gunnison