The 2025 Top Fuel 9.9 X0 AXS Gen 4 ML MATTE DARK WEB is available at the following locations.
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The Top Fuel 9.9 X0 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 wireless X0 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. It's right for you if... You want the best carbon trail bike with all-mountain capability, climbing efficiency and components to match. You don't mind spending a little extra to get the ultra-clean shifting of SRAM's X0 AXS wireless transmission and an upgraded RockShox Ultimate suspension package is a must. The tech you get An OCLV Mountain Carbon frame with a 4-way Mino Link lower shock mount for tweaking geometry and suspension leverage rate. A 130 mm RockShox Pike Ultimate fork with DebonAir spring and Charger 3.1 RC2 damper, plus 120 mm of rear travel from a RockShox Deluxe Ultimate RCT shock. A wireless SRAM X0 AXS transmission, SRAM Level Silver Stealth 4-piston hydraulic brakes, RockShox Reverb AXS dropper post and tubeless-ready Bontrager Line Pro 30 carbon wheels. The final word When you're after the best all-mountain carbon ride, reach for Top Fuel X0 AXS 9.9 Gen 4. With an ultra-light frame, carbon wheels and SRAM X0 wireless transmission, it delivers everything you want on dirt. Plus, it's built with a 4-way Mino Link lower suspension mount for taking control of your geometry and suspension feel.
| Frame | Size ML, OCLV Mountain Carbon, internal storage, tapered head tube, internal guided routing, downtube guard, alloy rocker link, 4-way Mino Link, ABP, Boost148, 120 mm travel |
| Fork | RockShox Pike Ultimate, DebonAir spring, Charger 3.1 RC2 damper, 44 mm offset, Boost110, Maxle Stealth, 130 mm travel |
| Wheel Size | Front 29 / Rear 29 |
| Wheels | Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15 mm thru-axle, 29" Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless-Ready, Rapid Drive 108, 6-bolt, Boost148, 12 mm thru axle, 29" |
| Tyres | Bontrager Montrose RSL XT, Tubeless-Ready, triple compound, aramid bead, 120 tpi, 29x2.40" // Bontrager Gunnison RSL XT, Tubeless-Ready, triple compound, aramid bead, 120 tpi, 29x2.40" |
| Shifter | SRAM AXS POD // SRAM AXS POD, paired with dropper |
| Rear Derailleur | SRAM X0 Eagle AXS, T-Type |
| Crank | SRAM X0 Eagle, DUB, 30T steel, T-Type, 55mm chainline, 170 mm length SRAM DUB MTB Wide, 73 m, BSA threaded |
| Cassette | SRAM Eagle XS-1295, T-Type, 10-52, 12-speed |
| Chain | SRAM X0 Eagle, T-Type, 12-speed |
| Front Brake | SRAM Level Silver 4-piston hydraulic disc // SRAM Level Silver Stealth 4-piston hydraulic disc SRAM HS2, 6-bolt, 180mm Max brake rotor size |
| Rear Brake | SRAM Level Silver 4-piston hydraulic disc // SRAM Level Silver Stealth 4-piston hydraulic disc SRAM HS2, 6-bolt, 180mm Max brake rotor size |
| Handlebar | Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 27.5 mm handlebar rise, 820 mm width, 0-degree stem rise, 45mm stem length |
| Seatpost | RockShox Reverb AXS, 170 mm travel, wireless, 34.9 mm, 480 mm length |
| Saddle | Verse Short Pro, carbon rails, 145 mm width |
| Weight | 13.1 kg |
| Brand | Trek |
| Model Year | 2025 |
| Barcodes | 601842998779, 601842998786, 601842998793, 601842998809, 601842998816, 601842998823, 601842998830, 601842998847, 601842998854, 601842998861, 601842998922, 601842998939, 601842998946, 601842998953, 601842998960 |
| SKUs / Part Numbers | 5319388, 5319389, 5319390, 5319391, 5319392, 5319393, 5319394, 5319395, 5319396, 5319397, 5320418, 5320419, 5320420, 5320421, 5320422 |
Please note: Manufacturers can sometimes change the specification of the products from time to time.