A 24-hour mountain bike race taking place in renowned local off-road arenas, teams and solo riders alike compete to turn the most and the fastest laps in trecherous singletrack and bone-shattering downhill trails. Teams compete in relays in co-ed or corporate categories. More than 1000 hardcore and non-hardcore cyclists in more than 250 teams participate in this race by camping-out in a Woodstock-like field. They ride on bicycles varying from the rigid frame to cyclocross bicycles to full-fledged, dual-suspension mountain bikes. The best part is that "Experience no need apply." Everyone can have fun in their own terms.

Places where the 24 Hours of Adrenalin are run in Canada:

- Hardwood Hills, Barrie, Ontario
- Canmore Nordic Centre, Canmore, Alberta
- Kelso Conservation Area, Milton, Ontario
- SilverStar Mountain Resort, Vernon, British Columbia