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  • Top Fuel C Frameset
2019

Top Fuel C Frameset

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$3,299.99 Model 23831

Top Fuel C is a carbon full suspension cross country frameset built for speed and efficiency on fast singletrack rides and XC courses. A lightweight OCLV Mountain Carbon main frame and stays, and 100mm of FOX Factory rear suspension make this carbon XC frameset worthy of racing at any level.

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It's right for you if...

Speed on singletrack is what you're after. You know a high-quality carbon frame can make a major difference in race-day performance, so you're looking to build up an XC bike that climbs like a rocket, flies on flats, and is still comfortable when the trail turns rough.

The tech you get

A trail-tough OCLV Mountain Carbon frame with 100mm of travel, a FOX Factory shock with a remote lockout, and an included headset make for a solid start on the build that may just bring you to your next podium finish.

The final word

Light on climbs, efficient and comfortable on rough trails, and always fast. Top Fuel C frameset lives to tear through singletrack trails on your fastest XC rides ever.

favorite_borderWhy you'll love it

  1. You get a full carbon frame that's super light and super stiff for ultimate efficiency
  2.  More than fast, it's also capable: build it up the right way and this race-ready frameset can double as your light trail bike on more rugged terrain
  3. Internal cable routing opens the door for upgrades like a dropper post

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Features

Suspension Calculator

This suspension calculator will help you optimize your suspension settings for your riding weight. Simply follow the steps to find your best set up.

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OCLV Mountain Carbon

Trek's mountain-specific carbon fiber is tougher carbon, with unique materials and layup procedures, Trek's advanced engineering, and a higher standard of testing.

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ABP

Our patented Active Braking Pivot allows your suspension to work freely whether you’re on the brakes or off. It’s smooth, controlled suspension that’s at its best all the time.

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TwistLoc Dual Remote Lockout

TwistLoc simultaneously locks out front and rear shocks with a simple Grip Shift-like motion; and it leaves room for a dropper post lever.

Mino Link adjustable geometry

Fine tune head tube angle by 1/2° and BB height by up to 10mm with the simple turn of a nut. Just flip the link to choose between slack or slacker geometry, without negatively affecting suspension performance. A Trek exclusive.

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Control Freak Cable Management

The lightest, quietest, most versatile cable management system allows any combination of shift, brake, lockout, and dropper post lines to be routed through the frame for clean looks and the ultimate custom setup.

Smart Wheel Size

The right wheel size paired with your frame size gives you the perfect combination of responsiveness and control.

G2 Geometry

Advanced frame geometry and a custom offset fork give our 29ers precise handling at low speed without compromising high-speed stability. We call it G2 Geometry, and it's why our 29ers handle better than anyone's.

Specifications

  • Frameset

    Frame
    OCLV Mountain Carbon main frame & stays, ABP, Full Floater, EVO link, tapered head tube, Mino Link, MicroTruss, Control Freak internal routing, Carbon Armor, PF92, Boost148 & G2 Geometry on 29ers, 100mm travel
    Rear suspension
    Fox Factory Float DPS, 2-position remote, Kashima Coat, tuned by Trek Suspension Lab, 6.5x1.5˝

  • Components

    Headset
    FSA IS-2, 1-1/8˝ top, 1.5˝ bottom

  • Weight

    Weight
    M - 2.09 kg / 4.6 lbs
    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 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
17.5 in M Low 29" 41.9 68.5° 74.0° 9.0 70.0° 59.3 33.0 3.9 43.5 5.1 8.0 111.1 72.4 42.7 57.7
17.5 in M High 29" 41.9 69.4° 74.9° 9.0 70.9° 59.3 34.1 2.8 43.2 5.1 7.4 110.9 73.4 43.6 57.0
18.5 in ML Low 29" 44.5 68.5° 74° 9.0 70.0° 60.9 33.0 3.9 43.5 5.1 8.0 112.7 71.9 44.3 57.7
18.5 in ML High 29" 44.5 69.4° 74.9° 9.0 70.9° 60.6 34.1 2.8 43.2 5.1 7.4 112.5 72.9 45.2 57.0
19.5 in L Low 29" 47.0 68.5° 74.0° 10.0 70.0° 62.5 33.0 3.9 43.5 5.1 8.0 114.4 71.9 45.7 58.7
19.5 in L High 29" 47.0 69.4° 74.9° 10.0 70.9° 62.3 34.1 2.7 43.2 5.1 7.4 114.3 72.9 46.6 58.0
21.5 in XL Low 29" 49.5 68.5° 74.0° 12.0 70.0° 64.6 33.0 3.9 43.5 5.1 8.0 116.6 71.9 47.2 60.6
21.5 in XL High 29" 49.5 69.4° 74.9° 12.0 70.9° 64.6 34.1 2.7 43.2 5.1 7.4 116.5 72.9 48.1 59.8

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