Top Fuel is a full suspension cross-country mountain bike that’s equally suited to XC racing and off-the-beaten-singletrack adventures. Every model has a 120 mm fork and 115 mm of rear travel, along with the advanced frame and suspension tech you need to ride fast and have a whole lot of fun wherever you roam.


Trek Top Fuel 7 SX 2021

  • Frame

    Alpha Platinum Aluminium, tapered head tube, Knock Block, Control Freak internal routing, downtube guard, magnesium rocker link, Mino Link, ABP, Boost148, 115 mm travel


    RockShox Judy SL, Solo Air spring, Motion Control damper, tapered steerer, 42 mm offset, Boost110, 15 mm Maxle Stealth, 120 mm travel


    X-Fusion Pro 2, 190x45 mm

    Suspension lever

    Bontrager Drop Lock remote


    Front hub

    Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle

    Rear skewer

    Bontrager Switch thru axle, removable lever


    Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23 mm width, Presta valve


    Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 29x2.40"

    Tyre part

    Bontrager TLR valve, 50 mm

    Rim strip

    Bontrager TLR



    SRAM SX Eagle, 12-speed

    Rear derailleur

    SRAM SX Eagle


    Size: S

    SRAM SX Eagle, DUB, 32T steel ring, Boost, 170 mm length


    Size: M, M/L, L, XL, XXL

    SRAM SX Eagle, DUB, 32T steel ring, Boost, 175 mm length

    Bottom bracket

    SRAM DUB, 92 mm, PressFit


    SRAM PG-1210 Eagle, 11-50, 12-speed



    Bontrager Arvada, steel rails, 138 mm width


    Size: S

    TranzX JD-YSP18, 100 mm travel, internal routing, 31.6 mm, 361 mm length


    Size: M, M/L, L, XL, XXL

    TranzX JD-YSP18, 130mm travel, internal routing, 31.6 mm, 425 mm length


    Bontrager Comp, alloy, 31.8 mm, 15 mm rise, 750 mm width


    Bontrager XR Trail Comp, nylon lock-on


    Size: S, M, M/L

    Bontrager Rhythm Comp, 31.8mm, Knock Block, 0-degree, 60 mm length


    Size: L, XL, XXL

    Bontrager Rhythm Comp, 31.8 mm, Knock Block, 0-degree, 70 mm length


    Shimano MT200 hydraulic disc

    *Brake rotor

    Size: S, M, M/L, L, XL, XXL

    Shimano RT26, 180 mm, 6-bolt


    Size: S, M, M/L, L, XL, XXL

    Shimano RT26, 160 mm, 6-bolt


    • This short-travel bike has a killer suspension set-up reminiscent of the all-mighty mullet – it's both efficient and ready to party
    • Bontrager DropLock's shifter-style lever lets you easily lock out both front and rear shocks at the same time for added sprinting or climbing efficiently. Plus, it controls your dropper post too
    • Mino Link lets you make small adjustments to your geometry quickly and easily, even mid-ride
    • You get a Straight Shot downtube for extra-stiff, responsive handling without added weight and a Knock Block headset that protects against spinning bars and fork crowns