The Top Fuel 9.9 XX1 AXS pulls out all the stops. This full-suspension carbon mountain bike is built with the latest in fully wireless components like a SRAM XX1 Eagle AXS drive train and RockShox Reverb AXS dropper. It's also spec'd with high-end RockShox suspension and lots of carbon - including the wheels, bars and shift levers.

You want fun. All of it. But you're also serious about speed, and want a bike that's spec'd accordingly. You're looking for a quick down-country shredder that's fast on flats, soaks up rough terrain and has the latest in fully wireless electronic components.

A full carbon frame, and a super-plush 120 mm RockShox SID Ultimate fork with a Charger Race Day damper that gives you more adjustment. 120 mm of rear travel with a SID Luxe shock, and a fully wireless SRAM XX1 Eagle AXS drivetrain. Plus, wide carbon Bontrager Line Pro 30 wheels with a 108-tooth Rapid Drive hub for instant engagement, wireless RockShox Reverb AXS dropper and SRAM Level Ultimate brakes with carbon levers.

The best of the best. You get all the fast down-country fun you can handle, with all of the latest and greatest in suspension and wireless drive train tech.
- The SRAM XX1 Eagle AXS drivetrain is smart, smooth and completely wireless
- The OCLV Carbon RSL integrated bar/stem is ultra-light and ultra-comfortable, and it looks awesome
- A sleek internal storage compartment gives you a versatile spot to stow tools and gear
- Wider Line Pro 30 wheels provide better tyre support so you can run lower pressure and get more traction
- Make it yours: it's fully customisable through Project One

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.



Quick and in control
120 mm of rear travel combined with progressive trail geometry gives you a fast, responsive ride that helps you keep your cool when the trail turns rowdy.

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



Hassle-free routing
Guided internal cable routing keeps Top Fuel quiet on the trail and maintenance a breeze.



Will my bike have a curved top tube?
The smaller frames (XS and S) have a curved top tube. This design makes for a lower standover height, which allows shorter riders to straddle the bike more easily. The larger frames (M and up) have a straight top tube because taller riders with longer legs typically don't have the same issues with standover height.