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
Fork
RockShox Judy SL, Solo Air spring, Motion Control damper, tapered steerer, 42 mm offset, Boost110, 15 mm Maxle Stealth, 120 mm travel
Shock
X-Fusion Pro 2, 190x45 mm
Suspension lever
Bontrager Drop Lock remote
Wheels
Front hub
Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle
Rear skewer
Bontrager Switch thru axle, removable lever
Rim
Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23 mm width, Presta valve
Tyre
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
Drivetrain
Shifter
SRAM SX Eagle, 12-speed
Rear derailleur
SRAM SX Eagle
*Crank
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
Cassette
SRAM PG-1210 Eagle, 11-50, 12-speed
Components
Saddle
Bontrager Arvada, steel rails, 138 mm width
*Seatpost
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
Handlebar
Bontrager Comp, alloy, 31.8 mm, 15 mm rise, 750 mm width
Grips
Bontrager XR Trail Comp, nylon lock-on
*Stem
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
Brake
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