Trek Fuel EX 9.9 XTR Gen 5


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Fuel EX 9.9 makes no compromises. Top-shelf suspension, carbon everything, and a super-smooth Shimano XTR drivetrain make this ripper ready to rule any trail in style. It’s fast, it’s light, and it’s got everything you need to crush your next trail ride.

It’s right for you if…
You want a bike as versatile as you are, and you’re demanding—of yourself and of your equipment. You want the lightest weight, the most adjustability, and the highest precision so the last thing you have to worry about on your next adventure is your bike.

The tech you get
A light and stiff OCLV Mountain Carbon frame with internal storage, FOX Factory suspension with Kashima Coat and an efficient yet plush RE:aktiv with Thru Shaft damper. A Shimano XT 1×12 drivetrain for super-smooth shifting that’s easy on the thumb—plus an extra-low 51-tooth climbing gear, and Bontrager carbon wheels and a whole bunch of other carbon parts for lower weight and elevated good looks.

The final word
If you can have just one mountain bike, this is it. Fuel EX 9.9 has the lightest parts with the most adjustability and precision. It’s equally at home on fast flowy singletrack, brutal leg-busting climbs, and gnarly arm-pumping descents.

Why you’ll love it
– Fuel EX 9.9 is for riders who want the best in everything. It’s dripping with carbon and has the latest in suspension and drivetrain tech
– RE:aktiv with Thru Shaft works faster than a normal shock, so it tracks the ground better and keeps you in control
– The Fox Factory 36 fork gives you four-way damping adjustments, plus you get Kashima Coat for smoother, more durable stanchions
– 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″ wheels, S frames get to choose between 27.5″ or 29″, and sizes M to XL get 29″ wheels
– Make it yours: it’s fully customizable through Project One



Frame OCLV Mountain Carbon main frame & stays, internal storage, tapered head tube, Knock Block, Control Freak internal routing, Carbon Armor, ISCG 05, magnesium rocker link, Mino Link, ABP, 130mm travel
Fork Fox Factory 36, Float EVOL air spring, GRIP2 damper, tapered steerer, 44mm offset, 15mm Kabolt axle, 140mm travel
Headset Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8” top, 1.5” bottom
Rear Shock Fox Factory Float EVOL, RE:aktiv with Thru Shaft 3-position damper, Kashima Coat, tuned by Trek Suspension Lab; XS – S: 210×52.5mm / M – XL: 210x55mm
Axles Front: 110 x 15mm thru-axle
Rear: 148 x 12mm thru-axle
Rims/Wheels Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub
Tires Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 TPI, 2.60″ front, 2.40″ rear
Crankset Shimano XTR M9120, Boost (52mm chainline)
Chainrings 30T alloy ring
Bottom Bracket Shimano MT500, 92mm, PressFit
Chain Shimano XTR M9100, 12 speed
Rear Derailleur Shimano XTR M9100, Shadow Plus, long cage, 51T max cog
Cassette/Rear Cogs Shimano XTR M9100, 10-51, 12 speed
Shifters Shimano XTR M9100, 12 speed
Handlebars Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 780mm width
Tape/Grips Bontrager XR Trail Elite, alloy lock-on
Stem Bontrager Line Pro, 35mm, Knock Block, Blendr compatible, 0 degree
Brakes Shimano XTR M9120 4-piston hydraulic disc w/Shimano RT86, 6-bolt rotors
Saddle Bontrager Arvada Pro, carbon rails, 138mm width
Seat Post Bontrager Line Elite Dropper, 100mm travel, internal routing, 31.6mm; XS – S: 100mm travel / M – ML: 150mm travel / L – XL: 170mm travel
Accessories & Extras Bontrager BITS Internal Frame Storage Bag

* Subject to change without notice.




Option UPC MPN Store SKU
Lithium Grey/Factory Orange / X-Small / 27.5-inch 601842439104 1050814  
Lithium Grey/Factory Orange / Small / 27.5-inch 601842439098 1050815  
Lithium Grey/Factory Orange / Small / 29-inch 601842439081 1050816  
Lithium Grey/Factory Orange / Medium / 29-inch 601842439074 1050817  
Lithium Grey/Factory Orange / Medium/Large / 29-inch 601842439067 1050818  
Lithium Grey/Factory Orange / Large / 29-inch 601842439050 1050819  
Lithium Grey/Factory Orange / X-Large / 29-inch 601842439043 1050820  
Matte Carbon Smoke / X-Small / 27.5-inch 601842439036 1050821  
Matte Carbon Smoke / Small / 27.5-inch 601842439029 1050822  
Matte Carbon Smoke / Small / 29-inch 601842439012 1050823  
Matte Carbon Smoke / Medium / 29-inch 601842439005 1050824 FUE30894861E
Matte Carbon Smoke / Medium/Large / 29-inch 601842438992 1050825  
Matte Carbon Smoke / Large / 29-inch 601842438985 1050826 FUE30900141E
Matte Carbon Smoke / X-Large / 29-inch 601842438978 1050827  
Raw Carbon/Rage Red / X-Small / 27.5-inch 601842439173 1050807  
Raw Carbon/Rage Red / Small / 27.5-inch 601842439166 1050808  
Raw Carbon/Rage Red / Small / 29-inch 601842439159 1050809  
Raw Carbon/Rage Red / Medium / 29-inch 601842439142 1050810  
Raw Carbon/Rage Red / Medium/Large / 29-inch 601842439135 1050811  
Raw Carbon/Rage Red / Large / 29-inch 601842439128 1050812  
Raw Carbon/Rage Red / X-Large / 29-inch 601842439111 1050813


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