Trek Top Fuel 9.9 SL AXS

Top Fuel 9.9 AXS is our fastest full suspension XC mountain bike. Everything on this bike is geared toward helping you go faster and perform better. An OCLV Mountain Carbon frame with a fully wireless SRAM XX1 Eagle AXS drivetrain, carbon components, and a super-lightweight full suspension setup make Top Fuel 9.9 AXS a race-ready rocket that flies over gnarly terrain on its way to the podium.

It's right for you if...
Whether you're racing or training, you want to be the fastest. You want a bike that exceeds expectations in all categories—light weight, strength, speed, and efficiency. And you want the quickness and precision of a fully wireless drivetrain so you never miss a shift again.

The tech you get
An OCLV Mountain Carbon mainframe and stays, a wireless SRAM XX1 Eagle AXS 1x12 drivetrain with carbon cranks, 100mm front and rear suspension with a super-light and super-plush RockShox SID SE carbon fork. Plus, Bontrager Kovee Pro 30 carbon wheels with a 108-tooth Rapid Drive hub, a TwistLoc dual remote suspension lockout, SRAM Level Ultimate brakes with carbon levers, and a carbon handlebar and seatpost.

The final word
This is hands down the fastest full suspension XC mountain bike we make, trimmed with the best parts out there. A carbon frame and components, top-of-the-line suspension, and a fully wireless drivetrain come together in Top Fuel 9.9 AXS to make it the fastest bike on the line. The rest is up to you.

Why you'll love it
- The SRAM XX1 Eagle AXS drivetrain is smart, smooth, and completely wireless
- This is full suspension performance at the weight of a hardtail
- TwistLoc simultaneously locks out front and rear shocks for climbs and sprints with the simple Grip Shift-like motion
- Wider Kovee Pro 30 wheels provide better tire support so you can run lower pressure and get more traction
- Make it yours: it's fully customizable through Project One