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Trek Top Fuel 8 NX - 2021

Trek Top Fuel 8 NX
  • Color: Volt/Dark Aquatic
  • Color: Satin Trek Black
Color: Volt/Dark Aquatic
Size: Select size
Please select options Unavailable
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Top Fuel 8 fuses the lightweight efficiency of a cross country bike with the capability and forgiveness of a full suspension trail bike. It's quick, nimble, and dishes out serious fun on flow trails and techy descents alike.

It's right for you if...
You’re looking for a do-it-all full suspension mountain bike that balances efficiency with shred-ability. You want to rip rough descents, fly up climbs, and even do a couple XC races.

The tech you get
A lightweight aluminum frame, 120mm RockShox Recon Gold RL fork with plush DebonAir spring, 115mm of rear travel with a FOX Performance Float shock, and a lighter SRAM NX Eagle drivetrain. Plus, hydraulic disc brakes, Bontrager DropLock dual remote suspension lockout, and a Bontrager Line Dropper.

The final word
Top Fuel 8 gets you the value of an alloy frame with drivetrain, fork, and brake upgrades that keep up as you progress in speed and skill.

Why you'll love it
- This short-travel bike has a killer suspension setup 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

Dropper posts

A dropper seatpost allows you to quickly lower and raise your seat to give you an ideal riding position. Dropping your seat creates a lower center of gravity for better control and maneuverability on steep descents, while raising it puts you at normal riding height for efficient pedaling.

Construction can include either hydraulic- or cable-actuated systems and the post’s travel can either be infinitely adjustable or stopped at set intervals, depending on the model.

Dropper seatposts come in standard lengths and diameters and vary by the amount of travel.

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.


Frame Alpha Platinum Aluminum, tapered head tube, Knock Block, Control Freak internal routing, downtube guard, magnesium rocker link, Mino Link, ABP, Boost148, 115mm travel
Fork RockShox Recon Gold RL, Solo Air spring, Motion Control damper, tapered steerer, 42mm offset, Boost110, 15mm Maxle Stealth, 120mm travel
Headset Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom
Rear Shock Fox Performance Float, 2-position DPS damper, Bontrager DropLock remote, 190x45mm
Axles Front: Boost 110 x 15mm thru-axle
Rear: Boost 148 x 12mm thru-axle
Rims/Wheels Bontrager Kovee Comp 23, Tubeless Ready
Hubs Front: Bontrager alloy, sealed bearing, alloy axle, 6-bolt
Rear: 6-bolt, Shimano 10 freehub
Tires Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120tpi, 29x2.40'', Bontrager TLR valve, 50mm
Crankset SRAM NX Eagle, DUB Boost (52mm chainline), 170/175mm length
Chainrings 32T steel ring
Bottom Bracket SRAM DUB, 92mm, PressFit
Chain SRAM NX Eagle, 12 speed
Rear Derailleur SRAM NX Eagle
Cassette/Rear Cogs SRAM PG-1230 Eagle, 11-50, 12 speed
Shifters SRAM NX Eagle, 12 speed
Handlebars Bontrager Comp, alloy, 31.8mm, 15mm rise, 750mm width
Stem Bontrager Rhythm Comp, 31.8mm, Knock Block, 0 degree, 60/70mm length
Brakes Front: SRAM CenterLine, 6-bolt, round-edge, 160mm
Rear: SRAM CenterLine, 6-bolt, round-edge, 180mm
Saddle Bontrager Arvada, steel rails, 138mm width
Seat Post Bontrager Line Dropper, 100/150mm travel, internal routing, 31.6mm, 345/440mm length

* Subject to change without notice.


Part Numbers

Option UPC MPN Store SKU
Volt/Dark Aquatic / Small 601842370414 1043962 TOP26282792C
Volt/Dark Aquatic / Medium 601842370407 1043964 TOP26579353C
Volt/Dark Aquatic / Medium/Large 601842370391 1043966 TOP27294952C
Volt/Dark Aquatic / Large 601842370384 1043967 TOP26663950C
Volt/Dark Aquatic / X-Large 601842370377 1043968 TOP27988033C
Volt/Dark Aquatic / XX-Large 601842370360 1043969 TOP28487423C
Satin Trek Black / Small 601842370476 1043950 TOP25955278K
Satin Trek Black / Medium 601842370469 1043952 TOP25962019K
Satin Trek Black / Medium/Large 601842370452 1043954 TOP26805352K
Satin Trek Black / Large 601842370445 1043956 TOP25242969K
Satin Trek Black / X-Large 601842370438 1043958 TOP26635212K
Satin Trek Black / XX-Large 601842370421 1043960 TOP2720077K