Trek Top Fuel 9.8 XT Di2 Gen 4 2026 Large Dark Star

The Trek Top Fuel 9.8 XT Di2 Gen 4 is a high-performance full-suspension mountain bike designed for fast and capable trail riding. Featuring an OCLV Mountain Carbon frame, 120mm rear travel, 130mm fork travel and Shimano XT Di2 12-speed electronic shifting, it combines responsive handling, efficient climbing and confident trail performance.

Features & Benefits

• OCLV Mountain Carbon frame provides a lightweight and durable foundation for demanding trail riding
• 120mm of rear suspension travel helps absorb impacts and maintain control on technical terrain
• RockShox Pike Select+ fork provides 130mm of front suspension travel with Charger 3.1 RC2 damping
• 4-way Mino Link allows geometry adjustment to suit different riding preferences and trail conditions
• Internal storage provides convenient space for carrying essential riding items
• Shimano XT Di2 12-speed electronic drivetrain delivers precise electronic shifting
• Shimano XT 30T crankset paired with a 10–51T 12-speed cassette provides a wide gearing range for climbing and fast trail sections
• Bontrager Line Comp 30 tubeless-ready 29-inch wheels are designed for trail performance and durability
• Bontrager Gunnison RSL XT and Montrose RSL XT 29 × 2.40-inch tubeless-ready tyres provide traction across varied trail surfaces
• Shimano XT M8220 4-piston hydraulic disc brakes provide strong braking performance and control
• Bontrager Line Dropper seatpost offers 200mm of travel for improved positioning on descents and technical sections
• Bontrager Line Pro OCLV Carbon handlebar combines low weight with a 780mm width and 27.5mm rise
• Finished in Dark Star (Black)
• Large frame size

• Colour: Dark Star (Black)
• Frame material: OCLV Mountain Carbon
• Frame travel: 120mm
• Head tube: Tapered
• Frame features: Internal storage, internal guided routing, downtube guard, alloy rocker link, 4-way Mino Link, ABP
• Rear axle: Boost148
• Fork: RockShox Pike Select+
• Fork spring: DebonAir
• Fork damper: Charger 3.1 RC2
• Fork offset: 44mm
• Fork axle: Boost110, 15mm Maxle Stealth
• Fork travel: 130mm
• Maximum compatible fork travel: 140mm
• Minimum compatible fork travel: 120mm
• Rear shock: RockShox Deluxe Ultimate RCT
• Rear shock size: 185 × 50mm
• Wheel size: 29-inch
• Wheelset: Bontrager Line Comp 30
• Wheel features: Tubeless Ready, 6-bolt
• Front axle: Boost110, 15mm thru axle
• Rear hub: Rapid Drive 108, Boost148, 12mm thru axle
• Rear freehub: Shimano Micro Spline
• Front tyre: Bontrager Gunnison RSL XT, 29 × 2.40-inch
• Rear tyre: Bontrager Montrose RSL XT, 29 × 2.40-inch
• Tyre construction: Tubeless Ready, triple compound, aramid bead, 120 tpi
• Shifters: Shimano XT Di2 M8250, 12-speed
• Rear derailleur: Shimano XT M8250, long cage
• Crankset: Shimano XT 8200, 30T, 55mm chainline, 170mm length
• Cassette: Shimano XT M8200, 10–51T, 12-speed
• Chain: Shimano Ultegra/XT M8100
• Saddle: Verse Short Comp, steel rails, 145mm width
• Seatpost: Bontrager Line Dropper, 200mm travel, MaxFlow, internal routing, 34.9mm, 515mm length
• Handlebar: Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 780mm width
• Stem: Bontrager Line Pro, 35mm, Blendr compatible, 0°, 35mm length
• Brakes: Shimano XT M8220, 4-piston hydraulic disc
• Weight: 14.00kg