Fuel EX 9.9 is light, fast, and decked out with top-shelf components. It has a carbon frame, carbon wheels, FOX Factory Float suspension, and a fully wireless SRAM X01 Eagle AXS electronic drivetrain and RockShox Reverb AXS dropper. This is the one carbon full suspension mountain bike that rules every trail&#8212;it's fast on 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 marathon races to gnarly descents and technical trails. You're looking for the best frame, suspension, and parts spec available, including the advantage of fully wireless electronic components.

The tech you get
A light and stiff full OCLV Mountain Carbon frame, 140mm FOX Factory 36 Float fork with GRIP2 damper, 130mm of rear travel with a FOX Factory Float shock featuring Trek's exclusive RE:aktiv with Thru Shaft, and a fully wireless SRAM X01 Eagle AXS 1x12 electronic drivetrain and RockShox Reverb AXS dropper post. Plus, powerful Shimano XT 4-piston hydraulic disc brakes, Tubeless Ready Bontrager Line Carbon 30 wheels with a 54-tooth Rapid Drive rear hub for quick engagement, and a Bontrager Line Pro OCLV Carbon handlebar. An internal storage compartment lets you securely stow ride essentials and doesn't detract from the bike's sleek look.

The final word
If you can have just one mountain bike, this is it. Fuel EX 9.9 pairs the best OCLV Mountain Carbon frame we make with the highest-end parts on the market, including a wireless electronic drivetrain and dropper. It's equally at home on fast singletrack, gnarly trail, and laying down miles on your next multi-stage race.

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
- 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&quot; wheels, S frames get to choose between 27.5&quot; or 29&quot;, and sizes M to XL get 29&quot; wheels
- Make it yours: it's fully customizable through Project One

2020 Trek Fuel EX 9.9 X01 AXS

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