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Trek Fuel EX 9.9 29

Trek Fuel EX 9.9 29
  • Color: Gloss Purple Phaze/Matte Trek Black
  • Color: Matte Carbon Smoke/Gloss Trek Black
  • Color: Radioactive Orange/Trek Black
  • Color: Viper Red/Trek White
  • Color: Volt/Solid Charcoal
This item is currently not available.


Fuel EX 9.9 is our best 130mm trail bike. A carbon frame, carbon wheels, a 1x12 SRAM X01 Eagle drivetrain, and FOX Factory Float suspension make this the one carbon full suspension mountain bike that rules every trail. It's fast on XC singletrack, light on climbs, and stable through the rowdiest terrain you can find.

It's right for you if...

You're a mountain biker through and through, and want a single carbon bike for the best performance on everything from XC races to gnarly descents and technical trail. You know you'll be riding this bike on every trail, so you're not going to compromise on frame material, suspension, or components.

The tech you get

A lightweight OCLV Mountain Carbon frame with full carbon stays, Bontrager Line Carbon wheels with a 54-tooth Rapid Drive rear hub for instant engagement, a 1x12 SRAM X01 Eagle drivetrain with a carbon crank, a 130mm FOX Factory Float fork, and 130mm rear travel with a FOX Factory rear shock featuring Trek's exclusive RE:aktiv with Thru Shaft. Plus, a Bontrager Line dropper post, 35mm Bontrager Line Pro OCLV Carbon handlebar.

The final word

If you can have just one mountain bike, this is it. Fuel EX 9.9 has high-end parts on the best OCLV Mountain Carbon frame we make. It's equally at home on fast singletrack, gnarly trail, and everything in-between.

Why you'll love it

1 - Fuel EX 9.9 is the single best choice for riders who want a versatile ripper for every kind of mountain biking, from fast XC races to burly technical terrain
2 - RE:aktiv with Thru Shaft works faster than a normal shock, so it tracks the ground better and keeps you in control
3 - Fuel EX 9.9 hits the sweet spot for high-end performance: you get the best frame and suspension with a premium parts group chosen for value


Frame OCLV Mountain Carbon main frame & stays, 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 Factory 34 Float, FIT4 3-position damper, tapered steerer, Kashima Coat, Boost110, G2 Geometry w/51mm offset, 130mm travel
Headset Knock Block Integrated, sealed cartridge bearing, 1-1/8-inch top, 1.5-inch bottom
Rear Shock Fox Factory Float EVOL, RE:aktiv with Thru Shaft 3-position damper, Kashima Coat, 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 SRAM X01 Eagle carbon DUB
Chainrings 32T Direct Mount
Bottom Bracket SRAM DUB Press Fit, 92mm
Chain SRAM GX Eagle
Rear Derailleur SRAM X01 Eagle, Roller Bearing Clutch
Cassette/Rear Cogs SRAM XG-1275 Eagle, 10-50, 12 speed
Shifters SRAM X01 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 Deore XT M8020 4-piston hydraulic disc
Pedals Not included
Saddle Bontrager Arvada Pro, carbon 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 Store SKU
Gloss Purple Phaze/Matte Trek Black / 15.5-inch 601479985968 578822 FUE43736866K
Gloss Purple Phaze/Matte Trek Black / 17.5-inch 601479985975 578823 FUE43888302K
Gloss Purple Phaze/Matte Trek Black / 18.5-inch 601479985982 578824 FUE4317629K
Gloss Purple Phaze/Matte Trek Black / 19.5-inch 601479985999 578825 FUE43956959K
Gloss Purple Phaze/Matte Trek Black / 21.5-inch 601479986002 578826 FUE43546757K
Matte Carbon Smoke/Gloss Trek Black / 15.5-inch 601479914647 568746 FUE43595806K
Matte Carbon Smoke/Gloss Trek Black / 17.5-inch 601479914654 568747 FUE43224744K
Matte Carbon Smoke/Gloss Trek Black / 18.5-inch 601479914661 568748 FUE43493862K
Matte Carbon Smoke/Gloss Trek Black / 19.5-inch 601479914678 568749 FUE43966617K
Matte Carbon Smoke/Gloss Trek Black / 21.5-inch 601479914685 568750 FUE4379991K
Radioactive Orange/Trek Black / 15.5-inch 601479985913 571683 FUE39331935K
Radioactive Orange/Trek Black / 17.5-inch 601479985920 571684 FUE39297415K
Radioactive Orange/Trek Black / 18.5-inch 601479985937 571685 FUE3938149K
Radioactive Orange/Trek Black / 19.5-inch 601479985944 571686 FUE39642341K
Radioactive Orange/Trek Black / 21.5-inch 601479985951 571687 FUE39601206K
Viper Red/Trek White / 15.5-inch 601479985869 571678 FUE30501823E
Viper Red/Trek White / 17.5-inch 601479985876 571679 FUE30696286E
Viper Red/Trek White / 18.5-inch 601479985883 571680 FUE30546920E
Viper Red/Trek White / 19.5-inch 601479985890 571681 FUE30163259E
Viper Red/Trek White / 21.5-inch 601479985906 571682 FUE30134697E
Volt/Solid Charcoal / 15.5-inch 601479956500 571658 FUE30129366L
Volt/Solid Charcoal / 17.5-inch 601479956517 571659 FUE30983245L
Volt/Solid Charcoal / 18.5-inch 601479956524 571660 FUE3075804L
Volt/Solid Charcoal / 19.5-inch 601479956531 571661 FUE30600276L
Volt/Solid Charcoal / 21.5-inch 601479956548 571662 FUE3041278L