TREK FUEL EX 9.8 XT 2025

Frame
OCLV Mountain Carbon with internal storage, angle-adjustable headset, variable geometry via Mino Link, adjustable leverage ratio, guided internal routing, magnesium rocker link, 34.9 mm seat tube, ISCG 05 compatibility, 55 mm chainline, BSA 73 bottom bracket, down tube protection, ABP system, UDH derailleur hanger, Boost148 axle spacing, 140 mm travel.

Fork
Fox Performance 36, Float EVOL air spring, GRIP damper, tapered steerer, 44 mm offset, Boost110, 15 mm Kabolt thru axle, 150 mm travel.
Shock
Fox Performance Float X, 2-position damper, 185x55 mm dimensions.

Maximum compatible fork travel
160 mm (XS/S: 150 mm).

Wheels

• Front: Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle.
  • XS/S: 27.5”.
  • S-XL: 29”.
• Rear: Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12 mm thru axle.
  • XS/S: 27.5”.
  • S-XL: 29”.

Tires
Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 60 tpi.

• XS/S: 27.5x2.50”.
• S-XL: 29x2.50”.

Drivetrain

• Shifter: Shimano XT M8100, 12-speed.
• Rear Derailleur: Shimano XT M8100, long cage.
• Crankset: Shimano XT M8120, 30T chainring, 55 mm chainline.
• Bottom Bracket: Shimano BB-MT501 BSA.
• Cassette: Shimano XT M8100, 10-51T, 12-speed.
• Chain: Shimano Ultegra/XT M8100, 12-speed.

Brakes

• Calipers: Shimano XT M8120, 4-piston hydraulic disc brakes.
• Rotors: Shimano RT86, 6-bolt mount:
  • XS-M: 180 mm.
  • ML-XL: 203 mm.

Components

• Dropper Post: Bontrager Line Elite with travel depending on frame size (XS: 100 mm, M: 150 mm, XL: 200 mm).
• Integrated Handlebar/Stem: Bontrager RSL, 820 mm width, length varies (XS: 35 mm, XL: 45 mm).
• Saddle: Bontrager Arvada or Verse Short Comp depending on frame size.

Additional Features

• Maximum tire size: Frame 29x2.50” (XS/S: 27.5x2.50”), Fork: See manufacturer.
• Weight (size M): 14.48 kg (with TLR sealant, no tubes).
• Maximum weight limit: 136 kg (bike + rider + cargo).