Name: Trek Top Fuel 9.8 XT Di2 Gen 4 2026
Brand: Trek
SKU: 5333137
Price: 5500.00 GBP
Availability: InStock

£5,500.00

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The Top Fuel 9.8 is a lightweight carbon trail bike built to rip up climbs and stay playful on descents. It gives you the confidence you want through roots and rocks, thanks to a 120 mm/130 mm (rear/front) RockShox suspension package with a Pike Select+ fork and Deluxe Ultimate shock. Plus, you get ultra-smooth and fast shifts from a 12-speed Shimano XT Di2 wireless drivetrain.

Frame	OCLV Mountain Carbon, internal storage, tapered head tube, internal guided routing, downtube guard, alloy rocker link, 4-way Mino Link, ABP, Boost148, 120 mm travel
Fork	RockShox Pike Select+, DebonAir spring, Charger 3.1 RC2 damper, tapered steerer, 44 mm offset, Boost110, 15 mm Maxle Stealth, 130 mm travel
Shock	RockShox Deluxe Ultimate RCT, 185 mm x 50 mm
Max compatible fork travel	140 mm

Wheels

*Wheel front	Size: S Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15 mm thru-axle, 27.5"
*Wheel front	Size: XL, L, M, ML Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15 mm thru-axle, 29"
*Wheel rear	Size: S Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12 mm thru-axle, 27.5"
*Wheel rear	Size: XL, L, M, ML Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12 mm thru-axle, 29"
Skewer rear	Bontrager Switch thru-axle, removable lever
*Tyre	Size: S Bontrager Gunnison RSL XT, Tubeless-Ready, triple compound, aramid bead, 120 tpi, 27.5x2.40"
	Size: XL, L, M, ML Bontrager Gunnison RSL XT, Tubeless-Ready, triple compound, aramid bead, 120 tpi, 29x2.40"
	Size: XL, L, M, ML Bontrager Montrose RSL XT, Tubeless-Ready, triple compound, aramid bead, 120 tpi, 29x2.40"
Rim strip	Bontrager TLR
Max tyre size	Frame: 29x2.50", Fork: See manufacturer

Drivetrain

Shifter	Shimano XT Di2 M8250, 12-speed
Rear derailleur	Shimano XT M8250, long cage
Crank	Shimano XT M8200, 30T, 55 mm chain-line, 170 mm length
Bottom bracket	Shimano BB-MT501 BSA
Cassette	Shimano XT M8200, 10-51, 12-speed
Chain	Shimano XT M8100, 12-speed
Max. chainring size	1x: 34T, min 30T

Components

Saddle	Verse Short Comp, steel rails, 145 mm width
*Seatpost	Size: S Bontrager Line Dropper, 100mm travel, MaxFlow, internal routing, 34.9 mm, 310mm length
*Seatpost	Size: M, ML Bontrager Line Dropper, 170 mm travel, MaxFlow, internal routing, 34.9 mm, 450 mm length Size: XL, L Bontrager Line Dropper, 200 mm travel, MaxFlow, internal routing, 34.9 mm, 515 mm length
Handlebar	Bontrager Line Pro, OCLV Carbon, 35 mm, 27.5 mm rise, 780 mm width
Stem	Bontrager Line Pro, 35 mm, Blendr-compatible, 0-degree, 35 mm length
Grips	Trek Line Elite, lock-on
Brake	Shimano XT M8200 4-piston hydraulic disc
Brake rotor	Shimano RT86, 6-bolt, 180 mm
Rotor size	Max brake rotor sizes – Frame: 200 mm, min 180 mm, Fork: see fork manufacturer

Accessories

Bag	Bontrager BITS Internal Frame Storage Bag

Weight

Weight	M - 14.00 kg / 30.86 lbs (with TLR sealant, no tubes)
Weight limit	This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).

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, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.

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

Trek Top Fuel 9.8 XT Di2 Gen 4 2026

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