mtb
✓ Verified Active Listing
The Original Growler Endurance Mountain Bike Races
🧬 Course DNA & Technical Intel
🛞 Recommended Tire
2.2" – 2.4" XC Tubeless
🚴 Discipline
mtb
🏁 Course Distance Options
THE CLASSIC (ADULT)
THE CLASSIC (MIDDLE/HIGH SCHOOL DISCOUNT)
THE PUP 20 (ADULT)
THE PUP 20 (MIDDLE/HIGH SCHOOL DISCOUNT)
THE BIG BAD 40
About The Original Growler Endurance Mountain Bike Races
Official registered mtb event in Gunnison, CO. Direct registration on BikeReg.
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⚙️ Recommended Pro Hardware for The Original Growler Endurance Mountain Bike Races
Top-rated power meters, radar, and GPS computers curated by Threshold Cycling.
Dual-Sided SPD Accuracy
View Product Specs ↗
Favero Assioma Pro MX-2 Power Meter Pedals
$759.00
±1% real-world power accuracy, seamless Bluetooth/ANT+ connectivity, and full rock strike durability designed specifically for gravel epics.
Backcountry Safety
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Garmin Varia RTL515 Radar Tail Light
$199.99
Detects approaching vehicles up to 153 yards away with visual and audible cockpit alerts on your GPS computer. Vital for remote rural gravel roads.
🚴 Upcoming Cycling Events in Colorado
Explore more verified races and endurance rides scheduled in Colorado.