Trek Fuel MX 9.8 XT Di2 (Gen 7) Full Suspension Trail Bike 2027

Fuel MX 9.8 XT Di2 is a chaos-craving carbon trail bike built for hitting bonus features. It starts off with an OCLV Mountain Carbon frame, spec’d with a Fox Factory suspension package (150mm rear, 160mm front), and MX wheels for getting wild on the trail. A wireless Shimano XT Di2 M8250 12-speed drivetrain gives you clean, customizable shifting, and 4-piston Shimano XT M8220 brakes provide excellent modulation and stop-on-a-dime power.

SPECIFICATIONS

*Please note - spec applies to all sizes unless listed separately

Frameset
Frame
OCLV Mountain Carbon, internal storage, ZS headset, adjustable leverage rate, guided internal routing, interchangeable alloy rocker link, interchangeable lower shock mount, downtube guard, shuttle guard, BSA 73, ISCG 05, ABP, UDH, Boost148, adaptable travel 145mm-160mm
*Fork
Size: S, M, L, XL, XXL
Fox Factory 36, Float EVOL air spring, GRIP X2 damper, 44mm offset, Boost 110, 15mm Kabolt X axle, 160mm travel
Size: S, M, L, XL, XXL
Fox Factory 36, Float EVOL air spring, GRIP X2 damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt, 160mm travel
Shock
Fox Factory Float X, 205mm x 60mm

Wheels
Wheel front
Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 29"
Wheel rear
Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, SRAM XD freehub, Boost148, 12mm thru axle, 27.5''
Skewer rear
Bontrager Switch thru axle, removable lever
*Tire
Size: S, M, L, XL, XXL
Maxxis Minion DHR II, tubeless ready, 3C, EXO+ casing, MAXXTERRA, folding bead, 27.5x2.5''
Size: S, M, L, XL, XXL
Maxxis Assegai, tubeless ready, 3C, EXO+ casing, MAXXGRIP, folding bead, 29x2.5''
Tire part
Bontrager TLR sealant, 180 ml/6 oz
Rim strip
Bontrager TLR
Max tire size
Frame: 29x2.50", Fork: See manufacturer

Drivetrain
Shifter
Shimano XT Di2 M8250, 12 speed
Rear derailleur
Shimano XT M8250, long cage
*Crank
Size: S, M, L, XL, XXL
Shimano XT 8200, 30T, 55mm chainline, 170mm length
Size: S, M, L, XL, XXL
Shimano XT M8200, 30T, 55mm chainline, 165mm length
Bottom bracket
Shimano BB-MT501 BSA
Cassette
Shimano XT M8200, 10-51, 12 speed
Chain
Shimano Ultegra/XT M8100, 12 speed
Max chainring size
See service manual

Components
Saddle
Verse Short Comp, steel rails, 145mm width
*Seatpost
Size: S
Bontrager Line Dropper, 150mm travel, MaxFlow, internal routing, 34.9mm, 410mm length
Size: M
Bontrager Line Dropper, 170mm travel, MaxFlow, internal routing, 34.9mm, 450mm length
Size: L, XL, XXL
Bontrager Line Dropper, 200mm travel, MaxFlow, internal routing, 34.9mm, 5150mm length
Handlebar
Race Face Turbine, alloy, 35mm, 40mm rise, 780mm width
Grips
Trek Line Elite, lock-on
Stem
Bontrager Elite, 35mm, 0 degree, 45mm length
Brake
Shimano XT M8220 4-piston hydraulic disc
*Brake rotor
Size: S, M, L, XL, XXL
Shimano RT86, 6-bolt, 203mm
Size: S, M, L, XL, XXL
Shimano RT86, 6-bolt, 180mm
Rotor size
Max brake rotor sizes - Frame: 203mm, min 180mm, Fork: see fork manufacturer

Weight
Weight limit
This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).

We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, materials, and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.

Bike and frame weights are based off pre-production painted frames at time of publication. Weights may vary in final production.