Trek Supercaliber SLR 9.9 Gen 2 - 2024, Small

This 2024 Trek Supercaliber SLR 9.9 XX AXS Gen 2 in size Small is a top-tier, race-ready XC mountain bike built for pure speed and efficiency, weighing just 20.1 lb with the carbon seatpost or 21.4 lb with the AXS dropper installed. The full carbon frame uses Trek’s IsoStrut system paired with a RockShox SIDLuxe shock to deliver 80 mm of efficient rear travel, while the RockShox SID Ultimate fork provides 110 mm up front for precise control on modern XC courses. The bike is equipped with the latest SRAM XX AXS T-Type 1x12 drivetrain with a wide-range cassette, XX carbon cranks with an integrated power meter, and SRAM Level Ultimate brakes for lightweight and consistent stopping power. Rolling on Bontrager RSL carbon wheels with fast Bontrager RSL 29x2.2 tires set up tubeless, this bike accelerates instantly and holds speed effortlessly. The cockpit features a Bontrager RSL one-piece carbon bar and stem, and the bike comes with both an AXS dropper post and a carbon XX rigid seatpost, giving you the flexibility to choose race-day minimalism or added trail control. With approximately 300 miles of use, the bike is in excellent condition with only a few tiny cosmetic marks from normal riding and no mechanical issues whatsoever, fully tuned and ready to line up at the start line.

Why we love it

We love this Supercaliber because it represents the absolute pinnacle of modern XC racing: insanely light, brutally efficient, and packed with the best technology available, from the IsoStrut suspension to the SRAM XX AXS T-Type drivetrain with power meter. It’s the kind of bike that disappears beneath you on climbs, stays razor-sharp on descents, and gives you every possible advantage whether you’re racing or just want the fastest XC bike Trek makes.