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Trek Fuel EX 9.8

Trek Fuel EX 9.8
  • Color: Raw Carbon/Rage Red
  • Color: Gloss Purple Phaze/Matte Raw Carbon
  • Color: Miami Green to Teal Fade
$5,499.99 - $5,999.99
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Fuel EX 9.8 is the carbon trail bike that can fly through singletrack, throw down with the rowdy trail crew, and crush miles during marathon races. A lightweight full OCLV Mountain Carbon frame, 1x12 SRAM GX Eagle drivetrain, carbon wheels, and FOX Performance Float suspension with Trek's exclusive RE:aktiv with Thru Shaft shock make it the perfect choice for all-mountain shredders who want a single bike that does it all.

It's right for you if...
You like going fast, getting rowdy, and clearing every obstacle on the first try. You want a single bike that can handle any trail, with high-quality parts, a carbon frame, and dialed suspension for everything from burly technical descents to singletrack and even endurance races.

The tech you get
A light and stiff full OCLV Mountain Carbon frame, 140mm FOX Performance 36 Float fork, 130mm of rear travel with a FOX Performance Float shock featuring Trek's exclusive RE:aktiv with Thru Shaft, and a 1x12 SRAM GX Eagle drivetrain. Plus, powerful Shimano SLX 4-piston hydraulic disc brakes, Tubeless Ready Bontrager Line Carbon 30 wheels with a 54-tooth Rapid Drive rear hub for quick engagement, a Bontrager Line Elite dropper post, and a Bontrager Line Pro OCLV Carbon handlebar. An internal storage compartment and Control Freak cable routing add to the bike's capability and sleek look.

The final word
Fuel EX 9.8 is the definitive mountain bike, and a great choice if you're going to invest in a single bike for all kinds of terrain. A full carbon frame, quality parts build, and advanced suspension make it an outstanding all-around mountain bike for endurance racing and ripping every kind of trail.

Why you'll love it
- This bike is light, fast, and capable of shredding any kind of trail whether you’re heading out for an afternoon session or miles of endurance riding
- RE:aktiv with Thru Shaft works faster than a normal shock, so it tracks the ground better and keeps you in control
- A sleek internal storage compartment gives you a versatile spot to stow tools and gear
- We expanded our size range to ensure a better fit for all riders. And, you get the fastest wheel that fits your frame: XS frames get 27.5-inch wheels, S frames get to choose between 27.5-inch or 29-inch, and sizes M to XL get 29-inch wheels
- Make it yours: it's customizable through Project One

Smaller frames (XS and S) have a top tube that dips down as it approaches the seat tube. This design makes for a lower standover height, which is good for shorter riders because it allows them to straddle their bike more easily. Larger frames (M and up) have a straight top tube because taller riders with longer legs typically don’t have the same issues with standover height.

A dropper seatpost allows you to quickly lower and raise your seat to give you an ideal riding position. Dropping your seat creates a lower center of gravity for better control and maneuverability on steep descents, while raising it puts you at normal riding height for efficient pedaling.

Construction can include either hydraulic- or cable-actuated systems and the post’s travel can either be infinitely adjustable or stopped at set intervals, depending on the model.

Dropper seatposts come in standard lengths and diameters and vary by the amount of travel.


Frame OCLV Mountain Carbon main frame & stays, BITS internal storage, tapered head tube, Knock Block, Control Freak internal routing, Carbon Armor, ISCG 05, magnesium rocker link, Mino Link, ABP, Boost148, 130mm travel
Fork Fox Performance 36, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt axle, 140mm travel
Headset Knock Block Integrated, cartridge bearing, 1-1/8" top, 1.5" bottom
Rear Shock Fox Performance Float EVOL, RE:aktiv with Thru Shaft 3-position damper, tuned by Trek Suspension Lab, 210x55mm
Axles Front: 15x110mm
Rear: 12x148mm
Rims/Wheels Bontrager Line Carbon 30, Tubeless Ready, 6-bolt
Tires Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi
Crankset Truvativ Descendant 7k Eagle, DUB
Chainrings 32T
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, 27.5mm rise
Tape/Grips Bontrager XR Trail Elite, alloy lock-on
Stem Bontrager Line Pro, 35mm, Knock Block, 0 degree
Brakes Shimano SLX M7120 4-piston hydraulic disc
Saddle Bontrager Arvada, austenite rails
Seat Post Bontrager Line Elite Dropper, internal routing, 31.6mm

* Subject to change without notice.


Trek Fuel EX

Part Numbers

Option UPC MPN Store SKU
Gloss Purple Phaze/Matte Raw Carbon / X-Small / 27.5-inch 601842224335 588871 FUE45282351N
Gloss Purple Phaze/Matte Raw Carbon / Small / 27.5-inch 601842224328 588872 FUE4412315N
Gloss Purple Phaze/Matte Raw Carbon / Small / 29-inch 601842224311 588873 FUE43900518N
Gloss Purple Phaze/Matte Raw Carbon / Medium / 29-inch 601842224304 588874 FUE4366102N
Gloss Purple Phaze/Matte Raw Carbon / Medium/Large / 29-inch 601842224298 588875 FUE44184578N
Gloss Purple Phaze/Matte Raw Carbon / Large / 29-inch 601842224281 588876 FUE43831033N
Gloss Purple Phaze/Matte Raw Carbon / X-Large / 29-inch 601842224274 588877 FUE44829102N
Miami Green to Teal Fade / X-Small / 27.5-inch 601842151549 588820 FUE35321937E
Miami Green to Teal Fade / Small / 27.5-inch 601842151556 588822 FUE34267883E
Miami Green to Teal Fade / Small / 29-inch 601842151563 588824 FUE33545751E
Miami Green to Teal Fade / Medium / 29-inch 601842151495 588825 FUE33984245E
Miami Green to Teal Fade / Medium/Large / 29-inch 601842151501 588826 FUE34782784E
Miami Green to Teal Fade / Large / 29-inch 601842151518 588827 FUE33777827E
Miami Green to Teal Fade / X-Large / 29-inch 601842151525 588828 FUE34473053E
Raw Carbon/Rage Red / X-Small / 27.5-inch 601842151464 588806 FUE31879953D
Raw Carbon/Rage Red / Small / 27.5-inch 601842151457 588808 FUE30709593D
Raw Carbon/Rage Red / Small / 29-inch 601842151433 588810 FUE2934042D
Raw Carbon/Rage Red / Medium / 29-inch 601842151440 588812 FUE29831566D
Raw Carbon/Rage Red / Medium/Large / 29-inch 601842151471 588814 FUE30576084D
Raw Carbon/Rage Red / Large / 29-inch 601842151488 588816 FUE29467036D
Raw Carbon/Rage Red / X-Large / 29-inch 601842151532 588818 FUE30857673D