Trek Supercaliber SLR 9.8 X0 AXS T-Type Gen 2

The Trek Supercaliber SLR 9.8 X0 AXS T-Type Gen 2 is a purpose-built cross-country race machine for riders who demand World Cup-level performance in every pedal stroke. Finished in the striking Marble Carbon Smoke colourway, this second-generation Supercaliber pairs Trek’s lightest OCLV Mountain Carbon frame with SRAM’s wireless X0 AXS T-Type transmission, creating a complete race package that leaves nothing on the trail.

Who Is the Trek Supercaliber SLR 9.8 X0 AXS T-Type Gen 2 Built For?

This bike is built for serious cross-country racers and performance-focused trail riders who want the acceleration of a hardtail combined with the traction and comfort of a short-travel full-suspension platform. It suits riders who compete at club, national, or amateur level and who train on technical XC terrain where every gram and every watt counts. The geometry and component spec assume a confident, aggressive rider comfortable on steep climbs and high-speed descents.

Performance That Defines the Trek Supercaliber SLR 9.8 X0 AXS T-Type Gen 2

The Trek Supercaliber SLR 9.8 X0 AXS T-Type Gen 2 is anchored by Trek’s highest-grade SLR OCLV Mountain Carbon frame, which uses a high-modulus carbon layup to deliver a frame that is approximately 225 grams lighter than the standard SL variant. That weight advantage compounds across every climb, every sprint, and every punchy acceleration on XC terrain. The IsoStrut rear suspension system, developed in partnership with RockShox, is a structural part of the frame itself. It provides 80mm of rear travel through pivotless seat stays that resist twisting and maximise power transfer, so the bike responds instantly whenever you push hard on the pedals. The result is a ride that feels closer to a premium hardtail on climbs, yet noticeably more planted and composed on rough descents than any rigid frame could manage.

Up front, the RockShox SID Ultimate fork contributes 110mm of travel with the Charger Race Day damper and DebonAir air spring, a combination tuned specifically for cross-country speed. The dual TwistLoc remote lockout lets you firm up both ends of the bike simultaneously for paved transfers or smooth fireroad climbs, then release it all with a flick of the wrist when the trail gets rough again. Combined with a 67.5-degree head angle and a size-large reach of 465mm, the Gen 2 geometry is noticeably more progressive than its predecessor, giving you added confidence when the course turns steep and technical. Riders who have spent time on the Enduroplanet XC range will recognise how this geometry shift makes the bike genuinely usable beyond race day, transforming it into a fast all-mountain trainer as well. Browse the full Trek mountain bike range at Enduroplanet for more performance-focused options.

The SRAM X0 Eagle AXS T-Type drivetrain operates wirelessly and uses a direct-mount rear derailleur design that removes the traditional B-tension screw in favour of a self-adjusting system. Shifting is crisp, precise, and unaffected by cable stretch or contamination. The 10-52T cassette provides a wide gear range that covers everything from steep technical climbs to flat-out sprint finishes. Stopping power comes from SRAM Motive Silver 4-piston hydraulic disc brakes with SRAM CenterLine rotors, giving you confident modulation in every condition. Bontrager Kovee Elite 30 OCLV Mountain Carbon wheels keep rotational weight low, while the Bontrager Sainte-Anne RSL XR 29×2.40″ tubeless tyres deliver grip and rolling speed across hardpack, loam, and rocky XC terrain alike.

5 Reasons You’ll Want the Trek Supercaliber SLR 9.8 X0 AXS T-Type Gen 2

• World Cup-grade carbon frame: The SLR OCLV Mountain Carbon construction uses the highest-modulus fibres in Trek’s lineup, shaving around 225 grams over the SL frame for a race-ready weight that accelerates with stunning urgency.
• Seamless wireless shifting: SRAM X0 Eagle AXS T-Type delivers precise, cable-free gear changes across a 10-52T range so you can attack every gradient without interrupting your rhythm or power output.
• Dual-lockout suspension control: The TwistLoc remote simultaneously firms up the RockShox SID Ultimate fork and the IsoStrut rear unit, giving you full compliance when you need traction and full rigidity when you need speed.
• Progressive Gen 2 geometry: A 67.5-degree head angle and extended reach deliver the handling stability you need to hold speed through technical descents that would unsettle a more traditionally proportioned XC bike.
• Race-ready carbon cockpit and wheels: The Bontrager RSL Integrated Carbon bar and stem combined with Kovee Elite 30 carbon wheels create a stiff, lightweight front end that translates every steering input directly into precise, confident handling.

The BikeRadar review of the Trek Supercaliber SLR 9.9 XX AXS Gen 2 highlights the platform’s defining character well, noting that the bike surges forward with very little effort and delivers razor-sharp handling with ridiculous urgency under power, confirming the Supercaliber SLR platform as one of the most capable cross-country machines currently available.

Learn more about Trek here: Trek official website
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