Trek
Mountain bikes

Top Fuel 9.8

$

7499

As Shown

Top Fuel 9.8 is a high-performance full suspension mountain bike for endurance racers and riders who don't settle for one style of riding. It combines the best qualities of XC and trail bikes for an unbelievably fun, efficient, and capable rig
It's right for you if...

You want an efficient, capable, short-travel trail bike that excels at endurance and stage racing and can handle rough trails and even XC races. You appreciate the performance advantage of carbon and want a super-light bike with race-level components and suspension.

The tech you get

A full OCLV Mountain Carbon frame, upgraded 120 mm Fox Performance 34 Step-Cast Float fork with GRIP damper, 115 mm of rear travel with a Fox Performance Float shock and a 1x12 SRAM GX Eagle drivetrain with Truvativ Descendant 7k DUB cranks. Plus, wide carbon Bontrager Kovee Elite 30 wheels with a 54-tooth Rapid Drive hub for fast engagement, TwistLoc dual remote suspension lockout, Bontrager Line Elite Dropper, Bontrager Kovee Pro OCLV Carbon handlebars and upgraded Shimano SLX hydraulic disc brakes.

The final word

Top Fuel 9.8 is an efficient, capable and ridiculously fun short-travel carbon trail bike with the performance boost of upgraded parts like the drivetrain, fork and brakes. It's built to rip technical terrain and descents, speed through flow sections and withstand the beating that endurance races dole out.

Frameset

Frame OCLV Mountain Carbon main frame and stays, tapered head tube, Knock Block, Control Freak internal routing, Carbon Armor, magnesium rocker link, Mino Link, ABP, Boost148, 115 mm travel

Fork Fox Performance 34 Step-Cast, Float EVOL air spring, GRIP 2-position damper, TwistLoc remote, tapered steerer, 44 mm offset, Boost110, 15 mm Kabolt axle, 120 mm travel

Shock Fox Performance Float, 2-position DPS damper, TwistLoc remote, tuned by Trek Suspension Lab, 190x45 mm

Suspension lever SRAM TwistLoc dual remote

Wheels

Front wheel Bontrager Kovee Elite 30 carbon, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle

Rear wheel Bontrager Kovee Elite 30 carbon, Tubeless Ready, 54T Rapid Drive, 6-bolt, SRAM XD driver, Boost148, 12 mm thru axle

Rear skewer Bontrager Switch thru axle, removable lever

Tyre Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 29x2.40"*

Tyre part Size: S, M, M/L, L, XL, XXL
Bontrager TLR valve, 50 mmSize: S, M, M/L, L, XL, XXL
Bontrager TLR sealant

Drivetrain

Shifter SRAM GX Eagle, 12-speed

Rear derailleur SRAM GX Eagle*

Crank Size: S
Truvativ Descendant 7k Eagle, DUB, 32T alloy ring, Boost, 170 mm lengthSize: M, M/L, L, XL, XXL
Truvativ Descendant 7k Eagle, DUB, 32T alloy ring, Boost, 175 mm length

Bottom bracket SRAM DUB, 92 mm, PressFit

Cassette SRAM XG-1275 Eagle, 10-50, 12-speed

Chain SRAM GX Eagle, 12-speed

Components

Saddle Bontrager Montrose Elite, titanium rails, 138 mm width*

Seatpost Size: S
Bontrager Line Elite Dropper, 100 mm travel, internal routing, 31.6 mm, 340 mm lengthSize: M, M/L
Bontrager Line Elite Dropper, 150mm travel, internal routing, 31.6 mm, 440mm lengthSize: L, XL, XXL
Bontrager Line Elite Dropper, 170mm travel, internal routing, 31.6 mm, 480mm length

Handlebar Bontrager Line Pro, OCLV Carbon, 35 mm, 15 mm rise, 750 mm width*

Stem Size: S, M, M/L
Bontrager Kovee Pro, 35 mm, Knock Block, Blendr-compatible, 13-degree, 60 mm lengthSize: M, L, XL, XXL
Bontrager Kovee Pro, 35 mm, Knock Block, Blendr-compatible, 13-degree, 70 mm lengthSize: M/L, L, XL
Bontrager Kovee Pro, 35 mm, Knock Block, Blendr-compatible, 13-degree, 80 mm lengthSize: XXL
Bontrager Kovee Pro, 35 mm, Knock Block, Blendr-compatible, 13-degree, 90 mm length

Head set Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8" top, 1.5" bottom*

Brake Size: S, M, M/L, L, XL, XXL
Shimano SLX M7100 hydraulic discSize: S, M, M/L, L, XL, XXL
Shimano SLX M7000 hydraulic disc, 180 mm front rotor, 160 mm rear rotor*

Brake rotor Size: S, M, M/L, L, XL, XXL
Shimano RT66, 6-bolt, 180 mmSize: S, M, M/L, L, XL, XXL
Shimano RT66, 6-bolt, 160 mm

Weight

Weight M - 11.80 kg / 26.02 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, colors, and materials.

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

Sizing & fit

Proper bike fit is essential for best performance and comfort. Any size and geometry measurements shown on trekbikes.com are for general comparison purposes only. To find your perfect fit, book a precision bike fit where an expert skilled at sizing will help you find the appropriate bike and size for your individual needs.

Top Fuel 9.8

$

7499

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