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NEW 2020

Top Fuel 9.8

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$7,099.99 - $7,749.99 Model 27920
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It's right for you if...

You want an efficient, capable, short-travel trail bike that excels at endurance and stage racing and can handle rough trails and even XC races. You appreciate the performance advantage of carbon and want a superlight bike with race-level components and suspension.

The tech you get

A full OCLV Mountain Carbon frame, upgraded 120mm Fox Performance 34 Step-Cast Float fork with GRIP damper, 115mm of rear travel with a Fox Performance Float shock, and a 1x12 SRAM GX Eagle drivetrain with Truvativ Descendant 7k DUB cranks. Plus, wide carbon Bontrager Kovee Elite 30 wheels with a 54-tooth Rapid Drive hub for fast engagement, TwistLoc dual remote suspension lockout, Bontrager Line Elite Dropper, Bontrager Kovee Pro OCLV Carbon handlebars, and upgraded Shimano SLX hydraulic disc brakes.

The final word

Top Fuel 9.8 is an efficient, capable, and ridiculously fun short-travel carbon trail bike with the performance boost of upgraded parts like the drivetrain, fork, and brakes. It's built to rip technical terrain and descents, speed through flow sections, and withstand the beating endurance races dole out.

The Walkthrough

favorite_borderWhy you'll love it

  1. This bike wants to go fast—it's built with no-nonsense, high-performance parts
  2. You get a Straight Shot down tube for extra stiffness in the rough and Knock Block frame defense to protect against spinning bars and fork crowns
  3. TwistLoc simultaneously locks out front and rear shocks for climbs and sprints with the simple Grip Shift-like motion
  4. Wider Kovee Elite 30 wheels provide better tire support so you can run lower pressure and get more traction
  5. This short-travel trail bike gives you a suspension setup that’s capable in several MTB disciplines, and especially suited to endurance events


Features

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.

Active Braking Pivot

Active Braking Pivot allows our engineers to tune how the suspension reacts to acceleration and braking forces independently. That means you get more confident control when you need it most.

Learn more

Straight Shot w/Knock Block

Trek's Straight Shot frame design optimizes the stiffness-to-weight ratio for a more responsive ride. You'll be able to push harder and stay more planted on your line when the going gets rough.

Learn more

Specifications

*spec applies to all sizes unless otherwise noted

Frameset
Mainframe 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 Fox Performance 34 Step-Cast, Float EVOL air spring, GRIP 2-position damper, TwistLoc remote, tapered steerer, 44mm offset, Boost110, 15mm Kabolt axle, 120mm travel
Shock Fox Performance Float, 2-position DPS damper, TwistLoc remote, tuned by Trek Suspension Lab, 190x45mm
Wheels
Front Wheel Bontrager Kovee Elite 30 carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle
Rear Wheel Bontrager Kovee Elite 30 carbon, Tubeless Ready, 54T Rapid Drive, 6-bolt, SRAM XD driver, Boost148, 12mm thru axle
Rear Skewer Bontrager Switch thru axle, removable lever
Tire Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120tpi, 29x2.40''
Drivetrain
Shifter SRAM GX Eagle, 12 speed
Rear Derailleur SRAM GX Eagle
*Crank Size: S
Truvativ Descendant 7k Eagle, DUB, 32T alloy ring, Boost, 170mm length
Size: M, M/L, L, XL, XXL
Truvativ Descendant 7k Eagle, DUB, 32T alloy ring, Boost, 175mm length
Bottom Bracket SRAM DUB, 92mm, PressFit
Cassette SRAM XG-1275 Eagle, 10-50, 12 speed
Chain SRAM GX Eagle, 12 speed
Components
Saddle Bontrager Montrose Elite, titanium rails, 138mm width
*Seatpost Size: S
Bontrager Line Elite Dropper, 100mm travel, internal routing, 31.6mm, 340mm length
Size: M, M/L
Bontrager Line Elite Dropper, 150mm travel, internal routing, 31.6mm, 440mm length
Size: L, XL, XXL
Bontrager Line Elite Dropper, 170mm travel, internal routing, 31.6mm, 480mm length
*Handlebar Size: S, M, M/L, L, XL, XXL
Bontrager Line Pro, OCLV Carbon, 35mm, 15mm rise, 750mm width
Size: S, M, M/L, L, XL
Bontrager Kovee Pro, OCLV Carbon, 35mm, 5mm rise, 720mm width
*Stem Size: S, M, M/L
Bontrager Kovee Pro, 35mm, Knock Block, Blendr compatible, 13 degree, 60mm length
Size: M, L, XL, XXL
Bontrager Kovee Pro, 35mm, Knock Block, Blendr compatible, 13 degree, 70mm length
Size: M/L, L, XL
Bontrager Kovee Pro, 35mm, Knock Block, Blendr compatible, 13 degree, 80mm length
Headset Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom
*Brake Size: S, M, M/L, L, XL, XXL
Shimano SLX M7100 hydraulic disc
Size: S, M, M/L, L, XL
Shimano SLX M7000 hydraulic disc, 180mm front rotor, 160mm rear rotor
*Brake Rotor Size: S, M, M/L, L, XL, XXL
Shimano RT66, 6-bolt, 180mm
Size: S, M, M/L, L, XL, XXL
Shimano RT66, 6-bolt, 160mm



  • Weight

    Weight
    M - 11.80 kg / 26.02 lbs (with TLR sealant, no tubes)
    Weight limit
    This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).
  • 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

    Proper bike fit is essential for best performance and comfort. Any size and geometry measurements shown on trekbikes.com are for general comparison purposes only. To find your perfect fit, visit an authorized Trek retailer, where an expert skilled at sizing will help you find the appropriate bike and size for your individual needs.

     

    Rider Height

    Inseam

    All measurements provided in cm unless otherwise stated.

    Frame size number Frame size letter Geometry position A — Seat tube B — Seat tube angle Effective 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
    15.5 S High 39.4 68.5° 75.5° 9.0 68.0° 56.3 34.3 3.0 43.4 4.4 10.3 111.7 73.0 41.0 59.0
    15.5 S Low 39.4 68.0° 75.0° 9.0 67.5° 56.4 33.7 3.6 43.5 4.4 10.7 111.7 72.5 40.5 59.4
    17.5 M High 41.9 68.5° 75.5° 9.0 68.0° 59.8 34.3 3.0 43.4 4.4 10.3 115.2 73.5 44.5 59.0
    17.5 M Low 41.9 68.0° 75.0° 9.0 67.5° 59.9 33.7 3.6 43.5 4.4 10.7 115.2 73.0 44.0 59.4
    18.5 ML High 44.5 68.5° 75.5° 9.0 68.0° 61.4 34.3 3.0 43.4 4.4 10.3 116.8 74.1 46.1 59.0
    18.5 ML Low 44.5 68.0° 75.0° 9.0 67.5° 61.5 33.7 3.6 43.5 4.4 10.7 116.8 73.5 45.6 59.4
    19.5 L High 47.0 68.5° 75.5° 10.0 68.0° 63.0 34.3 2.9 43.4 4.4 10.3 118.5 75.1 47.5 59.9
    19.5 L Low 47.0 68.0° 75.0° 10.0 67.5° 63.2 33.7 3.6 43.5 4.4 10.7 118.6 74.5 47.0 60.3
    21.5 XL High 52.1 68.5° 75.5° 11.0 68.0° 65.0 34.3 2.9 43.4 4.4 10.3 120.6 77.1 49.2 60.8
    21.5 XL Low 52.1 68.0° 75.0° 11.0 67.5° 65.1 33.7 3.6 43.5 4.4 10.7 120.7 76.5 48.7 61.2
    23.5 XXL High 57.0 68.5° 75.5° 12.0 68.0° 67.5 34.3 2.9 43.4 4.4 10.3 123.3 78.6 51.5 61.7
    23.5 XXL Low 57.0 68.0° 75.0° 12.0 67.5° 67.7 33.7 3.6 43.5 4.4 10.7 123.4 78.0 51.0 62.2

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