Trek Procaliber 8 (2018)

The smarter hardtail

Procaliber sets the bar for hardtail speed and smarts. It's the fast, ultralight cross country ride that rules the singletrack, from the local race scene to the World Cup XC.

Procaliber's innovative IsoSpeed decoupler delivers uncompromising XC performance, efficiency, and an incredible ride feel. It's the fastest, smoothest, smartest hardtail on the trail.

- Smooth IsoSpeed decoupler: ride faster, stronger, longer
- Boost148/110: stronger wheels, more tire clearance, shorter stays
- Superlight hydroformed aluminum frame is built for speed
- Ride the fastest wheel that fits with Smart Wheel Size
- 15.5-inch frame: 27.5-inch wheels
- 17.5—21.5-inch frames: 29-inch wheels