Sports and recreation
Mountain biking
Estimated acute risk associated with off-road mountain biking.
Base risk estimate
0.02 micromorts per hours
Population-level estimate. Not a personal prediction.
Assumptions
Assumes recreational off-road mountain biking on singletrack or similar terrain.
Limitations
Risk varies widely by trail difficulty, speed, protective gear, experience level, and terrain type.
Source notes
Placeholder value for development only. A population-based study of recreational mountain biking in Norway recorded 97 fatalities over 16 years (Heir T et al., Injury Epidemiology, ScienceDirect 2024), but national per-hour fatality rates are not published. Sports medicine literature (British Journal of Sports Medicine, American Journal of Sports Medicine) covers injury rates but not per-hour fatality rates specifically.
Last reviewed
6/10/2026