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Trek Fuel EX 9.8 29

Trek Fuel EX 9.8 29
  • Color: Gloss Purple Phaze/Matte Trek Black
  • Color: Matte Gravel/Quicksilver
  • Color: Radioactive Orange/Trek Black
  • Color: Viper Red/Trek White
  • Color: Volt/Solid Charcoal
This item is currently not available.


Fuel EX 9.8 is the versatile carbon trail bike that can climb with the XC crowd and throw down with the rowdy trail crew. A lightweight 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 single track and even XC races.

The tech you get

A light and stiff OCLV Mountain Carbon frame, Tubeless Ready Bontrager Line Carbon 30 wheels with a 54-tooth Rapid Drive rear hub for quick engagement, a 1x12 SRAM GX Eagle drivetrain, a 130mm FOX Performance 34 Float fork, and a FOX Performance Float shock featuring Trek's exclusive RE:aktiv with Thru Shaft. Plus, a Bontrager Line dropper post and a 35mm Bontrager Line Pro OCLV Carbon handlebar.

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 carbon frame, quality parts build, and advanced suspension make it an outstanding all-around mountain bike for every kind of trail.

Why you'll love it

1 - It doesn't box itself into a category: Fuel EX brings trail bike plushness with an XC race bike feel for our most versatile mountain bike whip
2 - RE:aktiv with Thru Shaft works faster than a normal shock, so it tracks the ground better and keeps you in control
3 - It's great for riders who don't want to do just one kind of mountain biking, but want to explore everything from XC marathons to epic descents
4 - The SRAM GX Eagle drivetrain provides all the range you'll ever need in the simplicity of a 1x setup


Frame OCLV Mountain Carbon main frame & seatstay, alloy chainstay, ABP, Boost148, Knock Block steerer stop, Full Floater, EVO link, tapered head tube, Mino Link, Control Freak internal routing, Carbon Armor, PF92, ISCG 05, G2 Geometry, 130mm travel
Fork Fox Performance 34 Float, GRIP 3-position damper, tapered steerer, G2 Geometry w/51mm offset, Boost110, 130mm travel
Headset Knock Block Integrated, sealed cartridge bearing, 1-1/8-inch top, 1.5-inch bottom
Rear Shock Fox Performance Float EVOL, RE:aktiv with Thru Shaft 3-position damper, tuned by Trek Suspension Lab, 210x52.5mm
Axles Front: 15 x 110mm
Rear: 12 x 148mm
Rims/Wheels Bontrager Line Carbon 30, Tubeless Ready, 54T Rapid Drive, Boost110 front, Boost148 rear, tubeless strips included, valves sold separately
Tires Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, 120tpi, aramid bead, 29x2.40?
Crankset Truvativ Descendant 7k Eagle DUB
Chainrings 32T Direct Mount
Bottom Bracket SRAM DUB Press Fit, 92mm
Chain SRAM GX Eagle
Rear Derailleur SRAM GX Eagle, Roller Bearing Clutch
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, 750mm width
Tape/Grips Bontrager XR Trail Elite, alloy lock-on
Stem Bontrager Line Pro, Knock Block, 35mm clamp, 0 degree
Brakes Shimano SLX M7000 hydraulic disc
Pedals Not included
Saddle Bontrager Arvada, austenite rails
Seat Post Bontrager Line, internal routing, 31.6mm, 15.5-inch size: 100mm, 17.5-inch & 18.5-inch sizes: 125mm, 19.5-inch & 21.5-inch sizes: 150mm

* Subject to change without notice.


Fuel EX: The Perfect Trail Bike

Part Numbers

Option UPC MPN
Gloss Purple Phaze/Matte Trek Black / 15.5-inch 601479985814 578862
Gloss Purple Phaze/Matte Trek Black / 17.5-inch 601479985821 578863
Gloss Purple Phaze/Matte Trek Black / 18.5-inch 601479985838 578864
Gloss Purple Phaze/Matte Trek Black / 19.5-inch 601479985845 578865
Gloss Purple Phaze/Matte Trek Black / 21.5-inch 601479985852 578866
Matte Gravel/Quicksilver / 15.5-inch 601479888542 568301
Matte Gravel/Quicksilver / 17.5-inch 601479888559 568302
Matte Gravel/Quicksilver / 18.5-inch 601479888566 568303
Matte Gravel/Quicksilver / 19.5-inch 601479888573 568304
Matte Gravel/Quicksilver / 21.5-inch 601479888580 568305
Radioactive Orange/Trek Black / 15.5-inch 601479985760 568366
Radioactive Orange/Trek Black / 17.5-inch 601479985777 568367
Radioactive Orange/Trek Black / 18.5-inch 601479985784 568368
Radioactive Orange/Trek Black / 19.5-inch 601479985791 568369
Radioactive Orange/Trek Black / 21.5-inch 601479985807 568370
Viper Red/Trek White / 15.5-inch 601479985715 568361
Viper Red/Trek White / 17.5-inch 601479985722 568362
Viper Red/Trek White / 18.5-inch 601479985739 568363
Viper Red/Trek White / 19.5-inch 601479985746 568364
Viper Red/Trek White / 21.5-inch 601479985753 568365
Volt/Solid Charcoal / 15.5-inch 601479888597 568306
Volt/Solid Charcoal / 17.5-inch 601479888603 568307
Volt/Solid Charcoal / 18.5-inch 601479888610 568308
Volt/Solid Charcoal / 19.5-inch 601479888627 568309
Volt/Solid Charcoal / 21.5-inch 601479888634 568310