Super Light OCLV Mountain Carbon, IsoSpeed, tapered head tube, MicroTruss, Control Freak internal routing, balanced post mount brake, Boost148 & G2 Geometry on M and larger sizes (Size S: 142x12mm rear hub)

For fast XC riders and cross country mountain bike racers who want to cover a lot of ground fast, there's no better hardtail frameset than Procaliber SL. It's built with Super Light OCLV Mountain Carbon and delivers the unique trail-smoothing advantage of IsoSpeed, which takes the edge off fatiguing bumps in the trail so you can stay stronger longer.

Trek Procaliber SL Frameset

The Trek Procaliber is a standout in the cross-country category, praised for its lightweight carbon frame and innovative IsoSpeed decoupler that enhances ride comfort. It offers sharp handling and efficient performance, though some reviews note limitations in steering precision and component groups. The bike is frequently compared to the Specialized Epic Hardtail and Trek's own Supercaliber for its race-ready features.

MD/LG

This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).

MSRP	$2,749
Where to Buy	— $1 At
Category	Crosscountry
Weight	2.5 lbs (frame)

Frame	Carbon

Wheels
Wheel Size	27.5″




Drivetrain
Brand Site	trekbikes.com
Summary	The Trek Procaliber SL Frameset is a 27.5″ carbon frame crosscountry frameset.

Frame	Super Light OCLV Mountain Carbon, IsoSpeed, tapered head tube, MicroTruss, Control Freak internal routing, balanced post mount brake, Boost148 & G2 Geometry on M and larger sizes (Size S: 142x12mm rear hub)
Headset	FSA IS-2, 1-1/8˝ top, 1.5˝ bottom