Trek Supercaliber

Supercaliber is Trek's purpose-built World Cup XC race bike, launched in 2020 as a radical answer to the question 'what if you could have rear suspension without the weight and lateral flex of a four-bar linkage?' The original Gen 1 used 60mm of rear travel via the IsoStrut — an integrated shock that doubles as the upper seatstay, with a SRAM/RockShox-co-developed damper hidden inside a carbon tube that pivots only at the bottom bracket area. The frame had no traditional rear pivot; instead the seatstays flex. Gen 2 (model years 2024-2026) bumped rear travel to 80mm, front to 110mm, kept the IsoStrut architecture, and shaved further weight. Jolanda Neff won Olympic gold on a Supercaliber at Tokyo 2020, and Trek riders have podiumed at World Cup and World Championship XC events on the platform. Production is exclusively at Trek's Asian carbon partners; no alloy version exists.