Bicycles are allowed on park roads only.
Be aware park roads have narrow or no shoulders, and often carry heavy traffic. To minimize conflicts with vehicles, plan your ride for the early morning hours.
Try to be off the road in late afternoon when thunderstorms and lightening create serious hazards.
Winter Roads open to bicycles:
* Upper Beaver Meadows Road
* Moraine Park Campground (closed loops)
* Endovalley Road
* Aspenglen Campground
* High Drive
Old Fall River Road (gravel surface) and Trail Ridge Road (paved) are open to bicycles early in the summer season (April), before they open to vehicles.