Trek Fuel EX 9.9 X01 AXS


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Fuel EX 9.9 makes no compromises. Top-shelf suspension, carbon everything, and SRAM’s latest X01 Eagle AXS wireless 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 fully wireless SRAM X01 Eagle AXS 1×12 electronic drivetrain and RockShox Reverb AXS dropper post. Plus, Bontrager Line Carbon 30 wheels with a 108-tooth Rapid Drive rear hub for quick engagement, and a 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 the lightest, most advanced 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
– The SRAM X01 Eagle AXS drivetrain is smart, smooth, and completely wireless
– 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, 210x55mm
Axles Front: 110 x 15mm thru-axle
Rear: 148 x 12mm thru-axle
Rims/Wheels NEW Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt
Tires Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 TPI, 2.60″ front, 2.40″ rear
Crankset SRAM X01 Eagle carbon, DUB, Boost
Chainrings 30T alloy ring
Bottom Bracket SRAM DUB, 92mm, PressFit
Rear Derailleur SRAM X01 Eagle AXS
Cassette/Rear Cogs SRAM XG-1295 Eagle, 10-52, 12 speed
Shifters SRAM Eagle AXS, wireless, 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, Blendr compatible, 0 degree
Brakes SRAM G2 Ultimate hydraulic disc, carbon levers
Saddle Bontrager Arvada, austenite rails, 138mm width
Seat Post RockShox Reverb AXS, wireless, 31.6mm

* Subject to change without notice.




Option UPC MPN Store SKU
Lithium Grey/Factory Orange / X-Small / 27.5-inch 601842438893 1050861 FUE43898686E
Lithium Grey/Factory Orange / Small / 27.5-inch 601842438886 1050862 FUE42577951E
Lithium Grey/Factory Orange / Small / 29-inch 601842438879 1050863 FUE41580472E
Lithium Grey/Factory Orange / Medium / 29-inch 601842438862 1050864 FUE4166810E
Lithium Grey/Factory Orange / Medium/Large / 29-inch 601842438855 1050865 FUE42295416E
Lithium Grey/Factory Orange / Large / 29-inch 601842438848 1050866 FUE4122940E
Lithium Grey/Factory Orange / X-Large / 29-inch 601842438831 1050867 FUE42361018E
Matte Carbon Smoke / X-Small / 27.5-inch 601842438824 1050868 FUE35282656E
Matte Carbon Smoke / Small / 27.5-inch 601842438817 1050869 FUE34836332E
Matte Carbon Smoke / Small / 29-inch 601842438800 1050870 FUE33832081E
Matte Carbon Smoke / Medium / 29-inch 601842438794 1050871 FUE33902568E
Matte Carbon Smoke / Medium/Large / 29-inch 601842438787 1050872 FUE34183544E
Matte Carbon Smoke / Large / 29-inch 601842438770 1050873 FUE3384921E
Matte Carbon Smoke / X-Large / 29-inch 601842438763 1050874 FUE34690969E
Raw Carbon/Rage Red / X-Small / 27.5-inch 601842438961 1050854 FUE35553023D
Raw Carbon/Rage Red / Small / 27.5-inch 601842438954 1050855 FUE34459874D
Raw Carbon/Rage Red / Small / 29-inch 601842438947 1050856 FUE33519107D
Raw Carbon/Rage Red / Medium / 29-inch 601842438930 1050857 FUE33481125D
Raw Carbon/Rage Red / Medium/Large / 29-inch 601842438923 1050858 FUE34282109D
Raw Carbon/Rage Red / Large / 29-inch 601842438916 1050859 FUE33487639D
Raw Carbon/Rage Red / X-Large / 29-inch 601842438909 1050860 FUE34309278D


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