2025 Trek Top Fuel 9.9 XTR Di2 Gen 4 – Trail Full Suspension Mountain Bike
Specifications
Specification |
Details |
Model |
Top Fuel 9.9 XTR Di2 Gen 4 |
Vehicle Category |
Trail Full Suspension Mountain Bike |
Application |
Trail riding, cross-country, all-mountain |
Starting Price (2025) |
$10,499.99 USD |
Color Options |
Dark Star |
Sizes |
S (27.5" wheel), M, ML, L, XL |
Frame & Drivetrain
Specification |
Details |
Frame |
OCLV Mountain Carbon, internal storage, Mino Link adjustable geometry, Active Braking Pivot (ABP), 120mm travel, 148x12mm thru axle |
Fork |
RockShox Pike Ultimate, DebonAir spring, Charger 3 RC2 damper, 130mm travel, 44mm offset, 15x110mm thru axle |
Rear Shock |
Fox Factory Float, 3-position damper, 185x50mm, 120mm travel |
Drivetrain Compatibility |
Shimano XTR Di2, 1x12-speed, wireless |
Dropouts |
148x12mm thru axle (R), 15x110mm thru axle (F) |
Crank |
Shimano XTR M9100, 32T, 165mm (S), 170mm (M, ML, L, XL) |
Chain |
Shimano XTR M9100, 12-speed |
Rear Derailleur |
Shimano XTR Di2 M9150, wireless, 12-speed |
Shifters |
Shimano XTR Di2 M9150, wireless, 12-speed |
Cassette |
Shimano XTR M9100, 10-51T, 12-speed |
Components & Features
Specification |
Details |
Seating |
Bontrager Arvada, 138mm width |
Cargo Capacity |
Internal storage (Bontrager BITS bag included), downtube water bottle mounts |
Wheels/Tyres |
Bontrager Line Pro 30, tubeless ready, 29x2.40" (M, ML, L, XL), 27.5x2.40" (S) |
Wheel Size |
29" (M, ML, L, XL), 27.5" (S) |
Brakes |
Shimano XTR M9120, 4-piston hydraulic disc, 180mm rotor (F, R) |
Brake Levers |
Shimano XTR M9100, hydraulic |
Handlebar |
Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 750mm width |
Stem |
Bontrager Line Pro, 35mm, 0 degree, 45mm length |
Headset |
Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8" top, 1.5" bottom |
Saddle |
Bontrager Arvada, 138mm width |
Seatpost |
Bontrager Line Elite Dropper, 100mm travel (S), 150mm travel (M, ML), 170mm travel (L, XL), 34.9mm, internal routing |
Seatpost Clamp |
Integrated, internal |
Grips |
Bontrager XR Trail Pro, alloy lock-on |
Front Hub |
Bontrager alloy, sealed bearing, 6-bolt, 15x110mm thru axle |
Rear Hub |
Bontrager alloy, sealed bearing, 6-bolt, Rapid Drive 108, Shimano MicroSpline freehub, 148x12mm thru axle |
Rims |
Bontrager Line Pro 30, OCLV Mountain Carbon, tubeless ready, 28-hole, 29mm width (M, ML, L, XL), 27.5mm width (S), Presta valve |
Spokes |
14g stainless steel |
Exterior Features |
Internal storage (Bontrager BITS bag included), Mino Link adjustable geometry, Active Braking Pivot (ABP), Knock Block, downtube water bottle mounts |