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NEW 2020

Fuel EX 9.8 XT

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$5,499.99 - $5,999.99 Model 31057

Fuel EX 9.8 is the carbon trail bike that can fly through singletrack, throw down with the rowdy trail crew, and crush miles during marathon races. A lightweight full OCLV Mountain Carbon frame, 1x12 Shimano XT drivetrain, carbon wheels, and FOX Performance Float suspension with Trek's exclusive RE:aktiv with Thru Shaft shock make it the perfect choice for all-mountain shredders who want a single bike that does it all.

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It's right for you if...

You like going fast, getting rowdy, and clearing every obstacle on the first try. You want a single bike that can handle any trail, with high-quality parts, a carbon frame, and dialed suspension for everything from burly technical descents to single track and even endurance races.

The tech you get

A light and stiff full OCLV Mountain Carbon frame, 140mm FOX Performance 36 Float fork, 130mm of rear travel with a FOX Performance Float shock featuring Trek's exclusive RE:aktiv with Thru Shaft, and a 1x12 Shimano XT drivetrain. Plus, powerful Shimano SLX 4-piston hydraulic disc brakes, Tubeless Ready Bontrager Line Carbon 30 wheels with a 54-tooth Rapid Drive rear hub for quick engagement, a Bontrager Line Elite dropper post, and a Bontrager Line Pro OCLV Carbon handlebar. An internal storage compartment lets you securely stow ride essentials and doesn't detract from the bike's sleek look.

The final word

Fuel EX 9.8 is the definitive mountain bike, and a great choice if you're going to invest in a single bike for all kinds of terrain. A full carbon frame, quality parts build, and advanced suspension make it an outstanding all-around mountain bike for endurance racing and ripping every kind of trail.

See it in action

favorite_borderWhy you'll love it

  1. This bike is light, fast, and capable of shredding any kind of trail whether you’re heading out for an afternoon session or miles of endurance riding
  2. RE:aktiv with Thru Shaft works faster than a normal shock, so it tracks the ground better and keeps you in control
  3. A sleek internal storage compartment gives you a versatile spot to stow tools and gear
  4. 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
  5. Make it yours: it's customizable through Project One

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Features

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.

Specifications

*spec applies to all sizes unless otherwise noted

Frameset
Fork Fox Performance 36, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm bolt-on axle, 140mm travel
*Shock Size: XS , S
Fox Performance Float EVOL, RE:aktiv with Thru Shaft 3-position damper, tuned by Trek Suspension Lab, 210x52.5mm
Size: S , M , ML , L , XL
Fox Performance Float EVOL, RE:aktiv with Thru Shaft 3-position damper, tuned by Trek Suspension Lab, 210x55mm
Wheels
Front Wheel Bontrager Line Carbon 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle
Rear Wheel Bontrager Line Carbon 30, Tubeless Ready, 54T Rapid Drive, 6-bolt, Shimano MicroSpline freehub, Boost148, 12mm thru axle
*Tire Size: XS , S
Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 27.5x2.60''
Size: S , M , ML , L , XL
Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 29x2.60''
Drivetrain
Shifter Shimano XT M8100, 12 speed
Rear Derailleur Shimano XT M8100, long cage, 51T max cog
*Crank Size: XS , S
Shimano XT M8100, 32T alloy ring, Boost, 170mm length
Size: M , ML , L , XL
Shimano XT M8100, 32T alloy ring, Boost, 175mm length
Bottom Bracket Shimano MT500, 92mm, PressFit
Cassette Shimano XT M8100, 10-51, 12 speed
Chain Shimano XT M8100, 12 speed
Components
Saddle Bontrager Arvada, austenite rails, 138mm width
*Seatpost Size: XS , S
Bontrager Line Elite Dropper, 100mm travel, internal routing, 31.6mm, 340mm length
Size: M , ML
Bontrager Line Elite Dropper, 150mm travel, internal routing, 31.6mm, 440mm length
Size: L , XL
Bontrager Line Elite Dropper, 170mm travel, internal routing, 31.6mm, 480mm length
Handlebar Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 780mm width
Grips Bontrager XR Trail Elite, alloy lock-on
*Stem Size: XS , S
Bontrager Line Pro, 35mm, Knock Block, 0 degree, 40mm length
Size: M , ML , L , XL
Bontrager Line Pro, 35mm, Knock Block, 0 degree, 50mm length
Headset Knock Block Integrated, cartridge bearing, 1-1/8'' top, 1.5'' bottom
Brake Shimano SLX M7120 4-piston hydraulic disc
Brake Rotor Shimano RT66, 6-bolt, 180mm



  • Weight

    Weight
    M - 13.59 kg / 29.96 lbs (with tubes)
    Weight limit
    This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).
  • We reserve 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, colors, and materials.
    Bike and frame weights are based off Trek pre-production painted frames at time of publication. Weights may vary in final production.

    Sizing & fit

    The charts below show our recommended sizes based on height, but there are some other factors, like arm and leg length, that determine a great fit. That’s why you’ll see some overlap in our recommendations. Not every rider who’s 5´8˝, for example, will fit on the same size bike. The best way to find your perfect fit is to consult the experts at your local Trek retailer.

     

    Rider Height

    Inseam

    All measurements provided in cm unless otherwise noted.

    Frame size number Frame size letter Geometry position Wheel size A — Seat tube B — Seat tube angle C — Head tube length D — Head angle E — Effective top tube F — Bottom bracket height G — Bottom bracket drop H — Chainstay length I — Offset J — Trail K — Wheelbase L — Standover M — Frame reach N — Frame stack
    13.5 XS High 27.5" 35.5 75.5° 9.0 66.5° 54.5 34.1 1.4 43.5 4.3 10.7 111.9 70.0 40.0 55.9
    13.5 XS Low 27.5" 35.6 75.0° 9.0 66.0° 55 33.5 2.1 43.7 4.3 11.1 112.0 69.5 39.5 56.3
    15.5 S High 27.5" 35.5 75.5° 10.0 66.5° 56.7 34.1 1.4 43.5 4.3 10.8 114.3 70.7 42.0 56.8
    15.5 S Low 27.5" 39.5 75.0° 10.0 66.0° 56.8 33.5 2.1 43.7 4.3 11.1 114.4 70.2 41.5 57.2
    15.5 S High 29" 39.5 75.5° 10.0 66.5° 57.7 34.6 2.8 43.5 4.3 11.5 115.3 70.7 42.0 60.5
    15.5 S Low 29" 39.5 75.0° 10.0 66.0° 57.8 33.9 3.4 43.7 4.3 11.9 115.4 70.2 41.5 60.8
    17.5 M High 29" 42.0 75.5° 10.0 66.5° 60.2 34.6 2.8 43.5 4.3 11.6 117.8 74.7 44.5 60.5
    17.5 M Low 29" 42.0 75.0° 10.0 66.0° 60.3 33.9 3.4 43.7 4.3 11.9 117.9 74.1 44.0 60.8
    18.5 ML High 29" 43.5 75.5° 10.5 66.5° 61.8 34.6 2.7 43.5 4.3 11.6 119.5 75.2 46.0 60.9
    18.5 ML Low 29" 43.5 75.0° 10.5 66.0° 61.9 33.9 3.4 43.7 4.3 11.9 119.6 74.6 45.5 61.3
    19.5 L High 29" 45.0 75.5° 10.5 66.5° 63.3 34.6 2.7 43.5 4.3 11.6 121.0 75.4 47.5 60.9
    19.5 L Low 29" 45.0 75.0° 10.5 66.0° 63.4 33.9 3.4 43.7 4.3 11.9 121.1 74.8 47.0 61.3
    21.5 XL High 29" 50.0 75.5° 12.0 66.5° 66.1 34.6 2.7 43.5 4.3 11.6 124.1 77.6 50.0 62.3
    21.5 XL Low 29" 50.0 75.0° 12.0 66.0° 66.3 33.9 3.4 43.7 4.3 11.9 124.2 77.0 49.5 62.7

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