River Valley Rumble Mountain Bike Race
Arkansas Mountain Bike Championship Series (AMBCS)
Jun 22, 2025
Fort Smith, AR
Mountain Bike
About
Tackle rugged trails and join Arkansas’ premier mountain biking showdown!
The 2025 River Valley Rumble Mountain Bike Race brings riders from all over to Fort Smith, Arkansas for an adrenaline-packed day of cross-country (XC) racing. As part of the Arkansas Mountain Bike Championship Series (AMBCS), the event welcomes all skill levels to a UCI-inspired course mixing flowy segments with old-school technical singletrack. Racers of all ages and backgrounds join for a weekend of community, competition, and adventure on the trails of Ben Geren Park.
COURSE DETAILS
The race features a UCI-inspired loop at Ben Geren Park, typically around 4.4 miles per lap, with the lap count tailored to each race category. Expect a blend of natural obstacles, flow trails, and classic singletrack, with rolling climbs and fast descents.
Race HIGHLIGHTS
- Part of the Arkansas Mountain Bike Championship Series (AMBCS) with points for series rankings
- Family-friendly race with categories for juniors through masters
- Hosted at spectator-friendly Ben Geren Park
- UCI-inspired course design with technical and flowy sections
- Welcoming community atmosphere with emphasis on fun and challenge
RIDE TYPES
Race overview
Approximately 4.4 miles per lap (exact number of laps depends on race category)
Elevation of Fort Smith: ~463 feet; Elevation gain per lap: To be confirmed (rolling climbs, similar to previous years)
Mix of old-school technical singletrack, flow trails, and natural surface with rocks, roots, and hills