TREK 2023 Fuel EX 9.9 XX1 AXS Gen 6

The Fuel EX 9.9 XX1 AXS is a performance-first trail bike built for riders who have an appreciation for the finest things in life. It combines a cream of the crop carbon frame with top-tier components, from the carbon fibre wheels all the way up to the 150 mm Kashima-coated FOX Factory fork and fully wireless SRAM XX1 drivetrain. It's a bike that rules the mountain and doesn't hesitate to lay claim to its domain, ripping up rock gardens, blasting berms and rocketing back to the top to conquer it all once again.

You have refined taste in mountain bikes, and don't like to settle. You want a bike built to tackle the whole mountain and rule it all with the finest technology the bike industry has to offer, from its light and stiff carbon frame and wheels that track through the hairiest lines, to the FOX Factory fork and fully wireless SRAM XX1 top-tier group set.

A featherweight OCLV Mountain Carbon frame built to handle the rough and rowdy, a pair of finely laced carbon wheels that track through technical terrain with ease and SRAM's top-tier XX1 AXS fully wireless electronic drivetrain. Plus, you get the silky smooth travel of a 150 mm FOX Factory 36 Fork with EVOL air spring and GRIP2 damper and 140 mm of FOX Factory Float rear suspension with 2-position damper, all topped off with adjustable geometry for fine-tuning your ride to you and internal frame storage that lets you keep your set-up tidy without leaving behind trail essentials.

The Fuel EX 9.9 is a bike built to satisfy those with the finest taste. It pairs together an all- mountain trail capable carbon frame with the finest components you'll find on a modern mountain bike, from its carbon hoops to wireless SRAM XX1 AXS shifting. It's all wrapped up with adjustable geometry, so you can fine tune your ride to always feel how you want it.
- You care about the finer things in life, like silky-smooth suspension that feels greater than the sum of its numbers and fully wireless shifting that keep your set-up tidy and low maintenance
- You can tackle any trail on the mountain with its progressive geometry that makes light work of steep, punchy climbs and turns around to rally the descents
- It comes with light and stiff carbon wheels that make quick work of technical terrain and keep you on your line, even when things get hairy
- We expanded our size range to ensure a better fit for all riders, and use the best-fitting wheels for each frame size: XS frames get 27.5? wheels, S frames get to choose between 27.5? or 29?, and sizes M and up get 29? wheels
- With the adjustable angle headset (angled cups sold separately) and Mino Link, you can choose from six different geometry configurations

Internal Storage
Internal frame storage makes it easy to ditch the pack and still carry your ride essentials.



Active Braking Pivot
Active Braking Pivot allows our engineers to tune how the suspension reacts to acceleration and braking forces independently. That means you get more confident control when you need it most.



Slack or steep, the choice is yours
Install angle-adjust headset cups (sold separately) to tweak the 64.5-degree head tube angle a degree steeper or slacker to your liking - all without impacting your bottom bracket height.



Adjust the sus for full send
Adjust the leverage rate with just a flip of a chip. Ride it in the Less progressive setting for a plusher feel perfect for rugged trails with square-edge bumps. Flip it to More progressive when you're hitting big features and don't want to bottom-out, or when you want to run a coil shock.

Size-specific stays
Size-specific chainstays provide balanced handling to keep the ride nimble for smaller riders and improve front wheel traction on climbs for taller riders.

Business at the front, party at the back
Craving the nimble ride of 27.5? wheels but don't want to sacrifice the speed of a 29er? No need to choose. The Fuel EX is mullet-ready, just throw Mino Link into high, toss on a 160 mm fork and get ready to party.