Supercaliber 9.9 XX1 AXS is the fastest, lightest and most capable cross country race bike we make. The exclusive IsoStrut integrated shock is the cornerstone of Supercaliber's efficient suspension system, giving you a fast and light ride that charges through rugged terrain at breakneck speed. A high-end mountain bike parts spec features a fully wireless SRAM XX1 Eagle AXS electronic drive train.

You're gunning for the top spot and looking for a pro-level cross country racing bike that has top-of-the-line everything. You want a bike that comes spec?d with the best parts and suspension available ? including a fully wireless electronic drive train ? for knock-out, drag-out speed and capability.

An ultra-lightweight, full OCLV Mountain Carbon frame with 60 mm of travel, a 100 mm RockShox SID Ultimate fork and Trek's exclusive IsoStrut FOX Factory shock designed specifically for Supercaliber. Plus, a SRAM XX1 Eagle AXS 1x12 wireless electronic drivetrain, Bontrager Kovee RSL carbon wheels with a 54-tooth DT Swiss rear hub for fast engagement and a Bontrager RSL integrated bar/stem.

If you don?t podium, sorry, but you can?t blame it on this bike. Its insanely light carbon frame is spec'd for the pros using the most advanced MTB components out there, including our cutting-edge IsoStrut integrated shock and a fully wireless SRAM XX1 Eagle AXS drive train.
- The SRAM XX1 Eagle AXS drivetrain is smart, smooth and completely wireless
- Our exclusive IsoStrut shock provides tunable, damped suspension for a smooth and efficient ride without the weight of full suspension
- Pivotless seat stays save on weight and actively bend to help soak up trail chatter
- The OCLV Carbon RSL integrated bar/stem is ultra-light and ultra-comfortable, and it looks awesome
- Wider Kovee RSL wheels provide better tyre support so you can run lower pressure and get more traction

Nothing else like it
Supercaliber?s unique frame design ditches traditional suspension hardware so there?s less weight, less maintenance and less lateral flex. IsoStrut connects the mainframe to the pivot-less seat stays to offer about 60 mm of rear wheel travel. This design offers a unique blend of efficiency, traction and fatigue-fighting compliance that keeps racers fresh and in control.

IsoStrut
IsoStrut integrated suspension gives you just enough travel to stay in control. It's fully tunable like a standard rear shock, but without the weight penalty of a full suspension bike.

OCLV Mountain Carbon
Trek's mountain-specific carbon is engineered to withstand the extreme demands of off-road racing. Advanced analysis allows our designers to create a frame with the best blend of light weight, responsiveness and just enough compliance in the seat stays to eliminate the need for a heavy rear pivot system.

Straight Shot w/Knock Block
Trek's Straight Shot frame design optimises the stiffness-to-weight ratio for a more responsive ride. You'll be able to push harder and stay more planted on your line when the going gets rough.