Top Fuel 9.9 XX1 AXS is our top-of-the-line full suspension carbon mountain bike for endurance racers and multi-discipline riders. This down-country rig is built with the latest in fully wireless components like the 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'll fly through singletrack and rip descents on this bike, but it really shines when pushed to its full potential during gruelling endurance races.
It's right for you if...
You've set your sights on endurance racing, and want every lightweight and performance advantage. You're looking for an efficient yet trail-capable rig that's fast on flats, soaks up rough terrain and has the latest in fully wireless electronic components.
The tech you get
A full OCLV Mountain Carbon frame, top-of-the-line 120 mm RockShox Pike Ultimate fork with plush DebonAir spring and Charger 2 RC2 damper that gives you more adjustment and control. 115 mm of rear travel with a RockShox Deluxe Ultimate shock and a fully wireless 1x12 SRAM XX1 Eagle AXS electronic drive train. Plus, wide carbon Bontrager Kovee Pro 30 wheels with a 108-tooth Rapid Drive hub for instant engagement, TwistLoc dual remote suspension lockout, a wireless RockShox Reverb AXS dropper, Bontrager Kovee XXX OCLV Carbon handlebars and SRAM Level Ultimate brakes with carbon levers.
The final word
The Top Fuel 9.9 XX1 AXS is built for speed and capability on any terrain, but its efficient, short-travel design excels in endurance events. An OCLV Mountain Carbon frame, fully wireless drive train and dropper, and top-of-the-line suspension come together for a nimble and insanely fun ride at any distance.
Why you'll love it
- The SRAM XX1 Eagle AXS drivetrain is smart, smooth and completely wireless
- It’s the ultimate endurance racing bike – light, capable and trimmed with high-performance components
- TwistLoc simultaneously locks out front and rear shocks for climbs and sprints with the simple Grip Shift-like motion
- This short-travel trail bike gives you a suspension set-up that’s capable in several MTB disciplines, and especially suited to endurance events
- Make it yours: it's fully customisable through Project One
*spec applies to all sizes unless otherwise noted
|Wheel front||Bontrager Kovee Pro 30 carbon, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle|
|Wheel rear||Bontrager Kovee Pro 30 carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, SRAM XD driver, Boost148, 12 mm thru axle|
|Skewer rear||Bontrager Switch thru axle, removable lever|
|Tyre||Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 29x2.40"|
|Rim strip||Bontrager TLR|
|Max tyre size||29x2.40"|
|Shifter||SRAM Eagle AXS, wireless, 12-speed|
|Rear derailleur||SRAM XX1 Eagle AXS|
|Crank||SRAM XX1 Eagle AXS, DUB, 32T alloy ring, Boost, 175 mm length|
|Bottom bracket||SRAM DUB, 92 mm, PressFit|
|Cassette||SRAM XG-1299 Eagle, 10-50, 12-speed|
|Chain||SRAM XX1 Eagle, 12-speed|
|Max. chainring size||36T|
|Saddle||Bontrager Arvada, austenite rails, 138 mm width|
|Seatpost||RockShox Reverb AXS, 150mm travel, wireless, 31.6 mm, 440 mm length|
|Handlebar||Bontrager Line Pro, OCLV Carbon, 35 mm, 15 mm rise, 750 mm width|
|Stem||Bontrager Kovee Pro, 35 mm, Knock Block, Blendr-compatible, 13-degree, 60 mm length|
|Head set||Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8" top, 1.5" bottom|
|Brake||SRAM Level Ultimate hydraulic disc, carbon levers|
|*Brake rotor||Size: M, M/L
SRAM CenterLine, 6-bolt, round-edge, 160 mm
|Size: M, M/L
SRAM CenterLine, 6-bolt, round-edge, 180mm
|Weight||M - 11.48 kg / 25.30 lbs (with TLR sealant, no tubes)|
|Weight limit||This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).|