The Top Fuel 9.9 XX AXS Gen 4 is an ultra-light and capable carbon trail bike that's built for soaring up climbs and rallying over miles of singletrack. This top-level build delivers the performance you want, with a RockShox Ultimate suspension package (120 mm/130 mm) and Sram's lightest wireless XX AXS transmission that shifts smooth and easy, especially under load. It's topped off with carbon wheels to keep your ride light from top to bottom.

Show full description and specs

Technology

Make the Top Fuel yours: Opt for light parts and a 120 mm fork for a featherweight Top Fuel, or a 140 mm fork and longer-stroke 130 mm rear shock for extra versatility. Room for a longer dropper and MX wheels lets you customise the Top Fuel into an ultimate playful trail whip.

Specification

Frame: OCLV Mountain Carbon, internal storage, tapered head tube, internal guided routing, downtube guard, alloy rocker link, 4-way Mino Link, ABP, Boost148, 120 mm - 130 mm travel OCLV Mountain Carbon, internal storage, tapered head tube, internal guided routing, downtube guard, alloy rocker link,

Frame Material: Carbon
Rim Size: 27.5
Fork: RockShox

Fork: RockShox Pike Ultimate, DebonAir spring, Charger 3.1 RC2 damper, 44 mm offset, Boost110, Maxle Stealth, 130 mm travel RockShox Pike Ultimate, DebonAir spring, Charger 3.1 RC2 damper, 44mm offset, Boost110, Maxle Ste

Rearsuspension: RockShox
Suspension Rear: RockShox Deluxe Ultimate RCT, 185 mm x 50 mm
Wheels: Bontrager Line Pro 30

Tires: Bontrager Gunnison RSL XT, Tubeless-Ready, triple compound, aramid bead, 120 tpi, 27.5x2.40"

Derailleur Rear: SRAM XX SL Eagle AXS, T-Type
Crank: SRAM XX Eagle, DUB, 30T, T-Type, 55 mm chainline, 170 mm length
Bottom Bracket: SRAM DUB MTB Wide, 73 m, BSA threaded
Cassette: SRAM Eagle XS-1299, T-Type, 10-52, 12-speed
Chain: SRAM XX Eagle, T-Type, 12-speed
Brake: SRAM

Brakeset: SRAM Level Ultimate 4-piston hydraulic disc SRAM Level Ultimate 4-piston hydraulic disc

Brake Rotor: SRAM HS2, 6-bolt, 180mm
Saddle: Verse Short Pro, carbon rails, 145 mm width
Seatpost: RockShox Reverb AXS, 100 mm travel, wireless, 34.9 mm, 340 mm length

Handlebar: Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 27.5 mm handlebar rise, 820 mm width, 0-degree stem rise, 35 mm stem length

Battery: SRAM AXS battery pack (with charger) SRAM AXS battery pack (with charger)
Size Chart Rider Height: Rider Height - 155.0 - 165.0
Size Chart Rider Inseam: Inseam - 74.0 - 78.0

Description from Substance Cycles.