Top Fuel 8 | Trek Bikes (INE)
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2017

Top Fuel 8

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Model 17433
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Living legend

The bike that ruled the podium at the height of mountain bike racing is back to reclaim the top step. Refined and reinvigorated with new technology, Top Fuel is the fastest bike on the trail.

The better-than-ever Top Fuel is the fast, versatile choice for the cross country racer, marathon rider and the entire Trek Factory Racing World Cup team.

Product details

  • RE:aktiv XC: the smartest, fastest, most efficient shock ever
  • Boost148/110: stronger wheels, more tire clearance, shorter stays
  • Mino Link adjustable geometry lets you fine tune your ride
  • Exclusive suspension tech with ABP & Full Floater


Features

Specifications

  • Frameset

    Frame
    Alpha Platinum Aluminum, ABP, Full Floater, EVO link, E2 tapered head tube, Mino Link, MicroTruss, internal derailleur & dropper post routing, down tube guard, PF92, ISCG 05, Boost148 & G2 Geometry on 29ers, 100mm travel
    Fork
    Fox Performance 32 Float, Step Cast, Grip adjustable damper, E2 tapered steerer, Boost110, G2 Geometry w/51mm offset on 29ers, 100mm travel
    Rear suspension
    Fox Performance Float, RE:aktiv XC 2-position damper, tuned by Trek Suspension Lab, 6.5x1.5"
  • Wheels

    Wheels
    Bontrager Mustang Pro, Tubeless Ready, Boost110 front, Boost148 rear (15.5: 142x12 rear)
    Tyres
    Bontrager XR1 Expert, Tubeless Ready, Inner Strength sidewalls, aramid bead, 29x2.20" (15.5: 27.5x2.20")
  • Drivetrain

    Shifters
    Shimano Deore, 10 speed
    Front derailleur
    Shimano Deore, low direct mount
    Rear derailleur
    Shimano Deore XT, Shadow Plus
    Crank
    Race Face Ride, 36/22
    Bottom bracket
    PF92
    Cassette
    Shimano HG50, 11-36, 10 speed
    Chain
    KMC X10
    Pedals
    Not included
  • Components

    Saddle
    Bontrager Evoke 2, chromoly rails
    Seatpost
    Bontrager Rhythm Elite, 2-bolt head, 31.6mm, zero offset
    Handlebar
    Bontrager Race Lite, 31.8mm, 5mm rise
    Grips
    Bontrager Race Lite, lock-on
    Stem
    Bontrager Elite, 31.8mm, 7 degree, Blendr compatible
    Head set
    Integrated, cartridge bearing, sealed, 1-1/8" top, 1.5" bottom
    Brake set
    Shimano Deore hydraulic disc
  • Weight

    Weight
    17.5" - 12.56 kg / 27.69 lbs
    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 on Trek pre-production painted frames at the 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 authorised 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 in S Low 39.4 69.5° 73.5° 10.0 69.9° 55.8 33.0 2.5 42.7 4.7 8.0 106.4 73.2 39.2 56.1
17.5 in M Low 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
18.5 in ML Low 44.5 68.5° 74.0° 9.0 70.0° 60.9 33.0 3.9 43.5 5.1 8.0 112.7 71.9 44.3 57.7
19.5 in L Low 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
21.5 in XL Low 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

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