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Trek Top Fuel 9.8

Trek Top Fuel 9.8
  • Color: Matte Carbon/Gloss Trek Black
  • Color: Trek Black to Teal Fade
  • Color: Viper Red
$5,499.99 - $5,999.99


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 fast on flow, shreds big singletrack, and conquers endurance events. The 9.8 is built with an OCLV Mountain Carbon frame and across-the-board parts upgrades, including a 120mm Fox Performance 34 Step-Cast fork, SRAM GX Eagle drivetrain, and carbon wheels and bars.

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 superlight bike with race-level components and suspension.

The tech you get
A full OCLV Mountain Carbon frame, upgraded 120mm Fox Performance 34 Step-Cast Float fork with GRIP damper, 115mm 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 endurance races dole out.

Why you'll love it
- This bike wants to go fast—it's built with no-nonsense, high-performance parts
- You get a Straight Shot down tube for extra stiffness in the rough and Knock Block frame defense to protect against spinning bars and fork crowns
- TwistLoc simultaneously locks out front and rear shocks for climbs and sprints with the simple Grip Shift-like motion
- Wider Kovee Elite 30 wheels provide better tire support so you can run lower pressure and get more traction
- This short-travel trail bike gives you a suspension setup that’s capable in several MTB disciplines, and especially suited to endurance events


Frame OCLV Mountain Carbon main frame & stays, tapered head tube, Knock Block, Control Freak internal routing, Carbon Armor, magnesium rocker link, Mino Link, ABP, Boost148, 115mm travel
Fork Fox Performance 34 Step-Cast, Float EVOL air spring, GRIP 2-position damper, TwistLoc remote, tapered steerer, 44mm offset, Boost110, 15mm Kabolt axle, 120mm travel
Headset Knock Block Integrated, sealed cartridge bearing, 1-1/8" top, 1.5" bottom
Rear Shock Fox Performance Float, 2-position DPS damper, TwistLoc remote, tuned by Trek Suspension Lab, 190x45mm
Axles Front: 110x15mm
Rear: 148x12mm
Rims/Wheels Bontrager Kovee Elite 30 carbon, Tubeless Ready, 6-bolt
Tires Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120tpi, 29x2.40"
Crankset Truvativ Descendant 7k Eagle DUB, Boost
Chainrings 32T alloy ring
Bottom Bracket SRAM DUB, 92mm, PressFit
Chain SRAM GX Eagle, 12 speed
Rear Derailleur SRAM GX Eagle
Cassette/Rear Cogs SRAM XG-1275 Eagle, 10-50, 12 speed
Shifters SRAM GX Eagle, 12 speed
Handlebars Bontrager Line Pro, OCLV Carbon, 35mm, 15mm rise
Tape/Grips SRAM TwistLoc
Stem Bontrager Kovee Pro, 35mm, Knock Block, Blendr compatible, 13 degree
Brakes Shimano SLX M7000 hydraulic disc, 180mm front rotor, 160mm rear rotor
Saddle Bontrager Montrose Elite, titanium rails
Seat Post Bontrager Line Elite Dropper, internal routing, 31.6mm

* Subject to change without notice.

Part Numbers

Option UPC MPN Store SKU
Matte Carbon/Gloss Trek Black / Small 601842112731 583942 TOP37138482K
Matte Carbon/Gloss Trek Black / Medium 601842112748 583943 TOP3740533K
Matte Carbon/Gloss Trek Black / Medium/Large 601842112755 583944 TOP38103163K
Matte Carbon/Gloss Trek Black / Large 601842112724 583945 TOP37207666K
Matte Carbon/Gloss Trek Black / X-Large 601842112762 583946 TOP38662749K
Matte Carbon/Gloss Trek Black / XX-Large 601842112786 584657 TOP39288645K
Trek Black to Teal Fade / Small 601842112779 583947 TOP31466292E
Trek Black to Teal Fade / Medium 601842112687 583948 TOP31169697E
Trek Black to Teal Fade / Medium/Large 601842112717 583949 TOP32542413E
Trek Black to Teal Fade / Large 601842112694 583950 TOP31291288E
Trek Black to Teal Fade / X-Large 601842112700 583951 TOP32572745E
Trek Black to Teal Fade / XX-Large 601842112793 584658 TOP33254889E
Viper Red / Small 601842223475 584002 TOP20535125D
Viper Red / Medium 601842223468 584003 TOP20777363D
Viper Red / Medium/Large 601842223451 584004 TOP21552710D
Viper Red / Large 601842223444 584005 TOP20397135D
Viper Red / X-Large 601842223437 584006 TOP21379122D
Viper Red / XX-Large 601842223420 584669 TOP22862147D