Top Fuel 9.8 GX AXS Gen 4 - 2025

Ideal for you!

You want the best carbon trail bike and are looking for a bike with all-mountain capabilities that offers maximum climbing efficiency and top-level components. You don't mind spending a little more to get the ultra-smooth shifting of the wireless SRAM X0 AXS drivetrain and an updated RockShox Ultimate suspension package.

The technology you get

OCLV Mountain carbon frame with lower shock mount Mino Link 4-way for adjusting geometry and suspension leverage ratio. RockShox Pike Ultimate 130mm fork with DebonAir spring and Charger 3.1 RC2 damper, rear travel of 120mm with RockShox Deluxe Ultimate RCT shock. Wireless SRAM X0 AXS drivetrain, SRAM Level Silver Stealth hydraulic 4-piston brakes, RockShox Reverb AXS dropper post, and Bontrager Line Pro 30 carbon tubeless-ready wheels.

The final word

If you're looking for the best all-mountain carbon bike, choose the Top Fuel 9.9 X0 AXS Gen 4. In addition to an ultra-light frame, carbon wheels, and wireless SRAM X0 drivetrain, it offers everything you need to conquer any trail. Plus, it features a 4-way Mino Link lower shock 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, an improved frame storage compartment, and greater adjustability to suit all types of riding.
• The RockShox Ultimate 130mm front suspension and 120mm rear travel provide a well-balanced bike that's efficient uphill and fun downhill.
• The 4-way Mino Link simplifies geometry or leverage ratio adjustments based on terrain and riding style.
• The improved frame storage with BITS system makes it easy to store tools, inner tubes, and snacks.
• Open to any upgrade, it allows 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 protection, 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"
• 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 Component: Bontrager TLR Sealant, 6oz
• Nipple Protector: Bontrager TLR
• Max. tire size: Frame: 29x2.50", Fork: Check with fork manufacturer

ELECTRONIC SYSTEM

• Battery: SRAM eTap Battery (with charger)

DRIVETRAIN

• Shifter:
  - Size: S, M, ML, L, XL - SRAM AXS POD
  - Size: S, M, ML, L, XL - SRAM AXS POD, paired with dropper post
• Rear Derailleur: SRAM X0 Eagle AXS, T-Type
• Crankset: SRAM X0 Eagle, DUB, 30T steel chainring, T-Type, 55mm chainline, 170mm length
• Bottom Bracket: SRAM DUB MTB Wide, 73mm, BSA threading
• Cassette: SRAM Eagle XS-1295, T-Type, 10-52, 12-speed
• Chain: SRAM X0 Eagle, T-Type, 12-speed
• Max Chainring Size: 1x: 34T, min 30T

COMPONENTS

• Saddle: Verse Short Pro, carbon rails, 145mm width
• Dropper Post:
  - 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/Stem (integrated):
  - Size: S - Bontrager RSL integrated bar/stem, OCLV carbon, 27.5mm rise, 820mm width, 0-degree stem rise, 35mm stem length
  - Size: M, ML, L, XL - Bontrager RSL integrated bar/stem, OCLV carbon, 27.5mm rise, 820mm width, 0-degree stem rise, 45mm stem length
• Brakes:
  - Size: S, M, ML, L, XL - SRAM Level Silver, 4-piston hydraulic disc brake
  - Size: S, M, ML, L, XL - SRAM Level Silver Stealth, 4-piston hydraulic disc brake
• Brake Rotor: SRAM HS2, 6 bolts, 180mm
• Max Rotor Size: Frame: 200mm, min 180mm, Fork: Check with fork manufacturer

WEIGHT

• Weight: M - 13.10 kg / 28.89 lbs (with TLR sealant, without inner tubes)
• Weight Limit: This model has a combined maximum weight limit (bike, rider, and cargo) 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.