TREK TOP FUEL 9.8 GX AXS MOUNTAIN BIKE – 2022
Top Fuel 9.8 is a full suspension carbon mountain bike for riders who don’t settle. Not for parts nor for one style of riding. It combines a high-end parts package—including a new SRAM GX Eagle AXS wireless electronic drivetrain—with a low-weight carbon frame for one unbelievably fun rig that’s fast on flow and fun to ride on techy singletrack. Â
It’s right for you if…
You’re looking for a do-it-all full suspension mountain bike that’s efficient and fast, but doesn’t shy away from some bigger stuff. You want the added stiffness and weight savings of a carbon frame, and want blazing fast wireless electronic shifting.
The tech you get
A light and stiff full carbon frame, 120mm RockShox SID Select+ fork, 120mm of rear travel with a SID Luxe shock, and a SRAM GX Eagle AXS wireless electronic drivetrain with an extra-low 52-tooth climbing gear. Plus, wide carbon Bontrager Line Elite 30 wheels with a 108-tooth Rapid Drive hub for instant engagement, Bontrager Line Elite Dropper, and carbon handlebars.
The final word
Top Fuel 9.8 is a ridiculously fun carbon down-country bike with upgraded parts that give you big benefits on the trail, like more speed from the carbon wheels, more grip from the ultra-smooth suspension, and faster, more precise shifts from the AXS drivetrain.
FEATURES
- The SRAM GX Eagle AXS drivetrain is smart, smooth, and completely wireless
- A sleek internal storage compartment gives you a versatile spot to stow tools and gear
- This bike’s killer suspension setup is both efficient and ready to party
- Wider Line Elite 30 wheels provide better tire support so you can run lower pressure and get more traction
TECH SPECS
Frameset
- Frame: OCLV Mountain Carbon, internal storage, tapered head tube, Knock Block 2.0, internal guided routing, downtube guard, magnesium rocker link, Mino Link, ABP, Boost148, 120mm travel
- Fork: RockShox SID Select+, DebonAir spring, Charger 2 RL damper, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 120mm travel
- Shock: RockShox Deluxe Ultimate RCT, 185mm x 50mm
- Max compatible fork travel: 130mm (541mm axle-to-crown)
Wheels
- Wheel front: Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle
- Wheel rear: Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, SRAM XD driver, Boost148, 12mm thru axle
- Skewer rear: Bontrager Switch thru axle, removable lever
- Tire: Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120tpi, 29×2.40”
- Tire part: Bontrager TLR sealant, 6oz
- Rim strip: Bontrager TLR
- Max tire size: Frame: 29×2.50″, Fork: See manufacturer
E-system
- Battery: SRAM eTap battery pack (with charger)
Drivetrain
- Shifter: SRAM GX Eagle AXS, 12 speed
- Rear derailleur: SRAM GX Eagle AXS
- Crank
- Size: S, M, M/L, L
- SRAM GX Eagle, DUB MTB Wide, 30T, 55mm chainline, 170 length
- Size: XL
- SRAM GX Eagle, DUB MTB Wide, 30T, 55mm chainline, 175 length
- Bottom bracket: SRAM DUB MTB Wide, 73mm, BSA threaded
- Cassette: SRAM Eagle XG-1275, 10-52, 12 speed
- Chain: SRAM GX Eagle, 12 speed
- Max chainring size: 1x: 36T round, 34T oval, min 28T
Components
- Saddle: Bontrager Arvada, austenite rails, 138mm width
- Seatpost
- Size: S
- Bontrager Line Elite Dropper, 100mm travel, MaxFlow, internal routing, 34.9mm, 345mm length
- Size: M, M/L
- Bontrager Line Elite Dropper, 150mm travel, MaxFlow, internal routing, 34.9mm, 440mm length
- Size: L
- Bontrager Line Elite Dropper, 170mm travel, MaxFlow, internal routing, 34.9mm, 485mm length
- Size: XL
- Bontrager Line Elite Dropper, 200mm travel, MaxFlow, internal routing, 34.9mm, 550mm length
- Handlebar
- Size: S
- Bontrager Line Pro, OCLV Carbon, 35mm, 15mm rise, 750mm width
- Size: M, M/L, L, XL
- Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 780mm width
- Stem: Bontrager Line Pro, 35mm, Knock Block, Blendr compatible, 0 degree, 45mm length
- Headset: Knock Block 2.0 Integrated, 72-degree radius (includes infinite-radius chip), sealed cartridge bearing, 1-1/8” top, 1.5” bottom
- Brake: SRAM G2 RS 4-piston hydraulic disc
- Brake rotor
- Size: S, M, M/L, L, XL
- SRAM CenterLine, 6-bolt, round-edge, 160mm
- Size: S, M, M/L, L, XL
- SRAM CenterLine, 6-bolt, round edge, 180mm
Weight
- Weight: M – 12.50 kg / 27.56 lbs (with TLR sealant, no tubes)
- Weight limit: This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).

































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