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Trek Top Fuel 9.8 GX AXS

Trek Top Fuel 9.8 GX AXS
  • Color: Gloss Red/Matte Carbon Smoke
Color: Gloss Red/Matte Carbon Smoke
Size: Medium
Please select options Unavailable
This item is not permitted to be shipped, however it can be purchased online and picked up at your convenience!


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 and wireless electronic drivetrain with a low-weight carbon frame for one unbelievably fun rig that's fast on flow and still fun to ride on techy singletrack.

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 the performance upgrade of a fully wireless electronic drivetrain.

The tech you get
A light and stiff full carbon frame, 120mm RockShox SID Select+ fork, 115mm of rear travel with a RockShox SID Luxe Ultimate shock, and a SRAM GX Eagle AXS wireless electronic drivetrain with an extra-low 52-tooth climbing gear. Plus, wide carbon Bontrager Kovee Elite 30 wheels with a 54-tooth Rapid Drive hub for fast engagement, Bontrager Line Elite Dropper, and powerful 4-piston brakes.

The final word
Top Fuel 9.8 is a ridiculously fun carbon down-country bike with upgraded parts that give you noticeable benefits on the trail, like more speed from the carbon wheels, more grip from the ultra-smooth suspension, and more precise shifts with a SRAM AXS drivetrain.

Why you'll love it
- The SRAM GX Eagle AXS drivetrain is smart, smooth, and completely wireless
- You get a Straight Shot downtube for extra-stiff, responsive handling without added weight, and a Knock Block headset that protects against spinning bars and fork crowns
- Bontrager DropLock's shifter-style lever lets you easily lock out both front and rear shocks at the same time for added sprinting or climbing efficiently. Plus, it controls your dropper post too
- Wider Kovee Elite 30 wheels provide better tire support so you can run lower pressure and get more traction
- This short-travel bike has a killer suspension setup reminiscent of the all-mighty mullet—it's both efficient and ready to party

bike frame with labeled dimensions
Bike Sizes:
S (High)S (Low)M (High)M (Low)
A. Reach 41cm 40.5cm 44.5cm 44cm
B. Stack 59cm 59.4cm 59cm 59.4cm
C. Standover 73.1cm 72.5cm 73.6cm 73cm
D. Effective Top Tube 56.3cm 56.4cm 59.8cm 59.9cm
E. Head Tube Angle 68.0° 67.5° 68.0° 67.5°
F. Head Tube Length 9cm 9cm 9cm 9cm
G. Seat Tube Angle 75.5° 75.0° 75.5° 75.0°
H. Seat Tube Length 39.4cm 39.4cm 41.9cm 41.9cm
I. Bottom Bracket Height 34.3cm 33.7cm 34.3cm 33.7cm
J. Bottom Bracket Drop 3cm 3.6cm 3cm 3.6cm
K. Fork Rake/Offset 4.4cm 4.4cm 4.4cm 4.4cm
L. Trail 10.3cm 10.7cm 10.3cm 10.7cm
M. Wheelbase 111.7cm 111.7cm 115.2cm 115.2cm
O. Chainstay Length 43.4cm 43.5cm 43.4cm 43.5cm

Will my bike have a curved top tube?

Smaller frames (S) have a top tube that dips down as it approaches the seat tube. This design makes for a lower standover height, which is good for shorter riders because it allows them to straddle their bike more easily. Larger frames (M and up) have a straight top tube because taller riders with longer legs typically don’t have the same issues with standover height.


Frame OCLV Mountain Carbon main frame & stays, tapered head tube, Knock Block, Control Freak internal routing, Carbon Armor, magnesium rocker link, Mino Link, ABP, Boost148, 115mm travel
Fork RockShox SID Select+, DebonAir spring, Charger 2 RL damper, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 120mm travel
Rear Shock RockShox SID Luxe Ultimate, DebonAir spring, Ultimate RL damper, 190x45mm
Wheels Bontrager Kovee Elite 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 54, XD Driver, 6-bolt, 148x12 rear, 110x15 front
Tires Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120tpi, 29 x 2.40"
Bottom Bracket SRAM DUB, 92mm, PressFit
Crankset SRAM GX 7K Eagle, DUB, 32T alloy ring, 52mm chainline
Shifters SRAM GX Eagle AXS, 12 speed
Rear Derailleur SRAM GX Eagle AXS
Cassette/Freewheel SRAM Eagle XG-1275, 10-52, 12 speed
Chain SRAM GX Eagle, 12 speed
Brakes SRAM G2 RS 4-piston hydraulic disc
Rotors SRAM CenterLine, 6-bolt, round edge, 180/160mm
Handlebars Bontrager Line Pro, OCLV Carbon, 35mm, 15mm rise, 750mm width
Tape/Grips Bontrager XR Trail Elite, nylon lock-on
Stem Bontrager Kovee Pro, 35mm, Knock Block, Blendr compatible, 13 degree
Headset Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8" top, 1.5" bottom
Seatpost Bontrager Line Elite dropper, MaxFlow, internal routing, 31.6mm
Saddle Bontrager Montrose Elite, titanium rails, 138mm width
Pedals Sold separately
Accessories & Extras Bontrager TLR sealant, 6oz; Bontrager TLR valve, 50mm

* Subject to change without notice.


Part Numbers

Option UPC MPN Store SKU
Gloss Red/Matte Carbon Smoke / Medium 601842622742 5261364 TOP396617E