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Trek Fuel EX 9.8 GX AXS Gen 5

Trek Fuel EX 9.8 GX AXS Gen 5
  • Color: Matte Carbon Smoke
  • Color: Lithium Grey/Factory Orange
  • Color: Raw Carbon/Rage Red
$5,299.99 - $7,499.99
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Wheel Size: Select wheel size
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Fuel EX 9.8 combines a light full-carbon frame with parts chosen for the highest performance-to-price ratio. High-end FOX suspension with upgraded front and rear dampers, carbon wheels with a Rapid Drive rear hub, and SRAM's latest, widest-range wireless electronic drivetrain give this model an extra edge you'll notice from the first pedal stroke.

It's right for you if...
You want a single bike that can handle any trail with the low weight and vibration damping of a carbon frame. You're willing to pay for parts that give you a better connection with the trail, including crisp, precise wireless electronic shifting.

The tech you get
A light and stiff full-carbon frame with internal storage, FOX Performance 36 fork with a GRIP damper that offers more adjustment, and a RE:aktiv with Thru Shaft shock. SRAM's latest GX Eagle AXS wireless electronic drivetrain with a leg-saving 52-tooth climbing gear, plus all-new Bontrager carbon wheels with a 108-tooth Rapid Drive hub for instant engagement, and powerful 4-piston brakes.

The final word
Fuel EX 9.8 is a great investment for one bike that does it all. You get a light carbon frame, but it's the parts that make this model, like the extra-adjustable GRIP damper, the magic-carpet ride of Thru Shaft, and the blistering acceleration of carbon wheels with a Rapid Drive hub.

Why you'll love it
- The SRAM GX Eagle AXS drivetrain is smart, smooth, and completely wireless
- RE:aktiv with Thru Shaft works faster than a normal shock, so it tracks the ground better and keeps you in control
- The Fox Performance 36 fork gives you four-way damping adjustments for extra-dialed suspension
- We expanded our size range to ensure a better fit for all riders. And, you get the fastest wheel that fits your frame: XS frames get 27.5" wheels, S frames get to choose between 27.5" or 29", and sizes M to XL get 29" wheels
- Make it yours: it's customizable through Project One

bike frame with labeled dimensions
Bike Sizes:
A. Reach 39.5cm 41.5cm 41.5cm 44cm 45.5cm 47cm 49.5cm
B. Stack 56.3cm 57.2cm 60.9cm 60.9cm 61.3cm 61.3cm 62.7cm
C. Standover 69.5cm 70.2cm 70.2cm 74.1cm 74.6cm 74.8cm 77cm
D. Effective Top Tube 54.6cm 56.8cm 57.8cm 60.3cm 61.9cm 63.4cm 66.3cm
E. Head Tube Angle 66.0° 66.0° 66.0° 66.0° 66.0° 66.0° 66.0°
F. Head Tube Length 9cm 10cm 10cm 10cm 10.5cm 10.5cm 12cm
G. Seat Tube Angle 75.0° 75.0° 75.0° 75.0° 75.0° 75.0° 75.0°
H. Seat Tube Length 35.6cm 39.5cm 39.5cm 42cm 43.5cm 45cm 50cm
I. Bottom Bracket Height 33.5cm 33.5cm 34cm 34cm 34cm 34cm 34cm
J. Bottom Bracket Drop 2.1cm 2.1cm 3.4cm 3.4cm 3.4cm 3.4cm 3.4cm
K. Fork Rake/Offset 4.3cm 4.3cm 4.3cm 4.3cm 4.3cm 4.3cm 4.3cm
L. Trail 11.1cm 11.1cm 11.9cm 11.9cm 11.9cm 11.9cm 11.9cm
M. Wheelbase 112cm 114.4cm 115.4cm 117.9cm 119.6cm 121.1cm 124.2cm
O. Chainstay Length 43.7cm 43.7cm 43.7cm 43.7cm 43.7cm 43.7cm 43.7cm
Wheel Size 27.5" 27.5" 29" 29" 29" 29" 29"
bike frame with labeled dimensions
Bike Sizes:
A. Reach 40cm 42cm 42cm 44.5cm 46cm 47.5cm 50cm
B. Stack 55.9cm 56.8cm 60.5cm 60.5cm 60.9cm 60.9cm 62.3cm
C. Standover 70cm 70.8cm 70.8cm 74.7cm 75.2cm 75.4cm 77.6cm
D. Effective Top Tube 54.5cm 56.7cm 57.7cm 60.2cm 61.8cm 63.3cm 66.2cm
E. Head Tube Angle 66.5° 66.5° 66.5° 66.5° 66.5° 66.5° 66.5°
F. Head Tube Length 9cm 10cm 10cm 10cm 10.5cm 10.5cm 12cm
G. Seat Tube Angle 75.5° 75.5° 75.5° 75.5° 75.5° 75.5° 75.5°
H. Seat Tube Length 35.5cm 39.5cm 39.5cm 42cm 43.5cm 45cm 50cm
I. Bottom Bracket Height 34.1cm 34.1cm 34.6cm 34.6cm 34.6cm 34.6cm 34.6cm
J. Bottom Bracket Drop 1.4cm 1.4cm 2.8cm 2.8cm 2.8cm 2.7cm 2.7cm
K. Fork Rake/Offset 4.3cm 4.3cm 4.3cm 4.3cm 4.3cm 4.3cm 4.3cm
L. Trail 10.6cm 10.6cm 11.5cm 11.6cm 11.6cm 11.6cm 11.6cm
M. Wheelbase 111.9cm 114.3cm 115.3cm 117.8cm 119.5cm 121cm 124.1cm
O. Chainstay Length 43.6cm 43.6cm 43.6cm 43.6cm 43.6cm 43.6cm 43.6cm
Wheel Size 27.5" 27.5" 29" 29" 29" 29" 29"

Will my bike have a curved top tube?

Smaller frames (XS and 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, internal storage, tapered head tube, Knock Block, Control Freak internal routing, Carbon Armor, ISCG 05, magnesium rocker link, Mino Link, ABP, Boost148, 130mm travel
Fork Fox Performance 36, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt axle, 140mm travel
Rear Shock Fox Performance Float EVOL, RE:aktiv with Thru Shaft 3-position damper, tuned by Trek Suspension Lab, 210mm x 55mm
Wheels NEW Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, SRAM XD driver, 148x12 rear, 110x15 front
Tires Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 29 x 2.60" (2.40" rear)
Bottom Bracket SRAM DUB, 92mm, PressFit
Crankset SRAM GX Eagle, DUB, 30T 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, 200/180mm
Handlebars Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 780mm width
Tape/Grips Bontrager XR Trail Elite, nylon lock-on
Stem Bontrager Line Pro, 35mm, Knock Block, Blendr compatible, 0 degree, 45mm length
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 Arvada, austenite rails, 138mm width
Pedals Sold separately
Accessories & Extras Bontrager TLR sealant, 6oz; Bontrager TLR valve, 50mm; Bontrager TLR rim strip

* Subject to change without notice.


Part Numbers

Option UPC MPN Store SKU
Lithium Grey/Factory Orange / X-Small / 27.5-inch 601842623206 5261323
Lithium Grey/Factory Orange / Small / 27.5-inch 601842623190 5261324
Lithium Grey/Factory Orange / Small / 29-inch 601842623183 5261325
Lithium Grey/Factory Orange / Medium / 29-inch 601842623176 5261326 FUE40433912E
Lithium Grey/Factory Orange / Medium/Large / 29-inch 601842623169 5261327
Lithium Grey/Factory Orange / Large / 29-inch 601842623152 5261328 FUE40965045E
Lithium Grey/Factory Orange / X-Large / 29-inch 601842623145 5261329
Matte Carbon Smoke / X-Small / 27.5-inch 601842623138 5261330
Matte Carbon Smoke / Small / 27.5-inch 601842623121 5261331
Matte Carbon Smoke / Small / 29-inch 601842623114 5261332
Matte Carbon Smoke / Medium / 29-inch 601842623107 5261333 FUE32218142E
Matte Carbon Smoke / Medium/Large / 29-inch 601842623091 5261334
Matte Carbon Smoke / Large / 29-inch 601842623084 5261335 FUE32128674E
Matte Carbon Smoke / X-Large / 29-inch 601842623077 5261336
Raw Carbon/Rage Red / X-Small / 27.5-inch 601842623275 5261316
Raw Carbon/Rage Red / Small / 27.5-inch 601842623268 5261317
Raw Carbon/Rage Red / Small / 29-inch 601842623251 5261318 FUE32137532D
Raw Carbon/Rage Red / Medium / 29-inch 601842623244 5261319 FUE32235385D
Raw Carbon/Rage Red / Medium/Large / 29-inch 601842623237 5261320 FUE33691732D
Raw Carbon/Rage Red / Large / 29-inch 601842623220 5261321 FUE3293063D
Raw Carbon/Rage Red / X-Large / 29-inch 601842623213 5261322 FUE33484466D