Top Fuel 9.8 GX AXS Gen 4 - 2025

Ideal for you!

You want the best carbon trail bike and are looking for a machine with all-mountain capabilities that offers maximum climbing efficiency and top-notch components. You don't mind spending a bit more to get the extreme lightness of the SRAM XX AXS wireless drivetrain and an upgraded RockShox Ultimate suspension package.

The technology you get

OCLV Mountain carbon frame with a 4-way Mino Link lower shock mount to adjust geometry and suspension leverage ratio. 130mm RockShox Pike Ultimate fork with DebonAir spring and Charger 3.1 RC2 damper, 120mm rear travel with RockShox Deluxe Ultimate RCT shock. Ultralight SRAM XX AXS wireless drivetrain, SRAM Level Ultimate hydraulic 4-piston brakes, RockShox Reverb AXS dropper post, and Bontrager Line Pro 30 carbon wheels, tubeless-ready.

The final word

If you're looking for the best carbon all-mountain bike, choose the Top Fuel 9.9 XX AXS Gen 4. In addition to an ultralight frame, carbon wheels, and the SRAM XX wireless drivetrain, it offers everything you need to conquer any trail. Plus, it features a 4-way Mino Link lower suspension mount that allows you to take control of geometry and handling.

Here’s why you’ll love it

• Top Fuel Gen 4 offers an extremely lightweight structure, improved frame storage, and greater adjustability to suit all types of riding.
• The 130mm RockShox Ultimate front suspension and 120mm rear travel provide a well-balanced bike, efficient uphill and fun downhill.
• The 4-way Mino Link simplifies geometry or leverage ratio adjustments based on terrain and riding style.
• The enhanced BITS storage system in the frame makes it easy to store tools, spare tubes, and snacks.
• Ready for any upgrade, it allows for the installation of forks up to 140mm, rear shocks with up to 130mm of travel, and extra-long dropper posts.

FRAME KIT

• Frame: OCLV Mountain Carbon, internal storage compartment, tapered head tube, internal cable routing, downtube protector, alloy rocker link, 4-way Mino Link, ABP, Boost148, 120mm travel
• Fork: RockShox Pike Ultimate, DebonAir spring, Charger 3.1 RC2 damper, 44mm offset, Boost110, Maxle Stealth, 130mm travel
• Suspension: RockShox Deluxe Ultimate RCT, 185mm x 50mm
• Max compatible fork travel: 140mm

WHEELS

• Front wheel:
  - Size: S - Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6 bolts, Boost110, 15mm thru axle, 27.5"
  - Size: M, ML, L, XL - Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6 bolts, Boost110, 15mm thru axle, 29"
• Rear wheel:
  - Size: S - Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6 bolts, Boost148, 12mm thru axle, 27.5"
  - Size: M, ML, L, XL - Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6 bolts, Boost148, 12mm thru axle, 29"
• Rear hub lock: Bontrager Switch thru axle, removable lever
• Tire:
  - Size: S - Bontrager Gunnison RSL XT, Tubeless Ready, triple compound, aramid bead, 120tpi, 27.5x2.40"
  - Size: M, ML, L, XL - Bontrager Montrose RSL XT, Tubeless Ready, triple compound, aramid bead, 120tpi, 29x2.40"
  - Size: M, ML, L, XL - Bontrager Gunnison RSL XT, Tubeless Ready, triple compound, aramid bead, 120tpi, 29x2.40"
• Tire sealant: Bontrager TLR sealant, 6oz
• Nipple guard: Bontrager TLR
• Max tire size: Frame: 29x2.50", Fork: Consult fork manufacturer specs

ELECTRONIC SYSTEM

• Battery: SRAM eTap Battery (with charger)

DRIVETRAIN

• Rear derailleur: SRAM XX SL Eagle AXS, T-Type
• Crankset: SRAM XX Eagle, DUB, 30T, T-Type, chainline 55mm, length 170mm
• Bottom bracket: SRAM DUB MTB Wide, 73mm, BSA threading
• Cassette: SRAM Eagle XS-1299, T-Type, 10-52, 12-speed
• Chain: SRAM XX Eagle, T-Type, 12-speed
• Max chainring size: 1x: 34T, min 30T

COMPONENTS

• Saddle: Verse Short Pro, carbon rails, 145mm width
• Seatpost:
  - Size: S - RockShox Reverb AXS, 100mm travel, wireless, 34.9mm, 340mm length
  - Size: M, ML, L, XL - RockShox Reverb AXS, 170mm travel, wireless, 34.9mm, 480mm length
• Handlebar/integrated stem:
  - Size: S - Bontrager RSL integrated bar/stem, OCLV carbon, 27.5mm handlebar rise, 820mm width, 0-degree stem rise, 35mm stem length
  - Size: M, ML, L, XL - Bontrager RSL integrated bar/stem, OCLV carbon, 27.5mm handlebar rise, 820mm width, 0-degree stem rise, 45mm stem length
• Brake: SRAM Level Ultimate 4-piston hydraulic disc
• Brake rotor: SRAM HS2, 6 bolts, 180mm
• Rotor size: Max brake rotor size - Frame: 200mm, min 180mm, Fork: consult fork manufacturer specs

WEIGHT

• Weight: M - 12.85 kg / 28.33 lbs (with TLR sealant, without inner tube)
• Weight limit: This model has a total maximum weight limit (combined weight of the bike, rider, and load) of 136kg.

The manufacturer reserves the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice. The prices shown are the manufacturer's suggested retail prices.