Trek Top Fuel 8 XT Gen 3
Details
Top Fuel 8 fuses the speed 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 is efficient yet can get rowdy. You want to rip rough descents, fly up climbs, and crush lap after lap.
THE TECH YOU GET
A lightweight aluminum frame with internal storage, 130mm RockShox Pike fork with plush DebonAir spring, 120mm of rear travel with a RockShox Deluxe Ultimate RCT shock, and a Shimano XT drivetrain. Plus, 4-piston brakes for confident descents, Bontrager Line Comp 30 wheels that are already completely tubeless ready, including sealant, 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 bike's killer suspension setup is both efficient and ready to party
- You get wide Bontrager Line Comp 30 wheels that boost grip and reduce flats with their tubeless setup
- Mino Link lets you make small adjustments to your geometry quickly and easily, even mid-ride
- A sleek internal storage compartment gives you a versatile spot to stow tools and gear
- New, removable Knock Block has a bigger steering angle to keep cables and hoses safe without sacrificing turning radius
| Frame size | Small | Medium | Medium / Large | Large | X-Large | XX-Large |
|---|---|---|---|---|---|---|
| Geometry position | High / Low | High / Low | High / Low | High / Low | High / Low | High / Low |
| Wheel size | 29" | 29" | 29" | 29" | 29" | 29" |
| Seat tube (cm) | 39.5 | 42 | 43.5 | 45 | 50 | 54 |
| Seat tube angle | 69.9° / 69.5° | 69.9° / 69.5° | 69.9° / 69.5° | 69.9° / 69.6° | 69.9° / 69.6° | 75.9° / 75.6° |
| Effective seat tube angle | 75.9° / 75.5° | 75.9° / 75.5° | 75.9° / 75.5° | 75.9° / 75.6° | 75.9° / 75.6° | 69.9° / 69.6° |
| Head tube length (cm) | 10 | 10 | 10.5 | 11 | 12.5 | 13.5 |
| Head angle | 65.9° / 65.5° | 65.9° / 65.5° | 65.9° / 65.5° | 65.9° / 65.6° | 65.9° / 65.6° | 65.9° / 65.6° |
| Effective top tube (cm) | 56.9 / 57 | 59.9 / 60 | 61.5 / 61.6 | 63.1 / 63.2 | 65.4 / 65.5 | 67.7 / 67.8 |
| Bottom bracket height (cm) | 34.6 / 34.1 | 34.6 / 34.1 | 34.6 / 34.1 | 34.6 / 34.1 | 34.6 / 34.1 | 34.6 / 34.1 |
| Bottom bracket drop (cm) | 2.7 / 3.2 | 2.7 / 3.3 | 2.7 / 3.3 | 2.7 / 3.3 | 2.7 / 3.3 | 2.7 / 3.3 |
| Chainstay length (cm) | 43.4 / 43.5 | 43.4 / 43.5 | 43.4 / 43.5 | 43.4 / 43.5 | 43.4 / 43.5 | 43.4 / 43.5 |
| Offset (cm) | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 |
| Trail (cm) | 12 / 12.3 | 12 / 12.3 | 12 / 12.3 | 12 / 12.3 | 12 / 12.3 | 11.2 / 12.2 |
| Wheelbase (cm) | 115.3 / 115.4 | 118.3 / 118.4 | 120 / 120.1 | 121.7 / 121.8 | 124.4 | 126.8 |
| Standover (cm) | 72.4 / 71.9 | 74.4 / 73.9 | 74.9 / 74.4 | 75.4 / 74.9 | 76.4 / 75.9 | 76.4 / 75.9 |
| Frame reach (cm) | 41.9 / 41.5 | 44.9 / 44.5 | 46.4 / 46 | 47.9 / 47.5 | 49.9 / 49.5 | 51.9 / 51.5 |
| Frame stack (cm) | 59.6 / 59.9 | 59.6 / 59.9 | 60 / 60.4 | 60.5 / 60.8 | 61.9 / 62.2 | 63 / 63.1 |
| Size | Rider Height (cm) | Rider Height (in) |
|---|---|---|
| Small | 155 - 165 cm | 5'1" - 5'5" |
| Medium | 165 - 176 cm | 5'5" - 5'9" |
| Medium/Large | 173 - 180 cm | 5'8" - 5'11" |
| Large | 177 - 188 cm | 5'10" - 6'2" |
| X-Large | 188 - 195 cm | 6'2" - 6'5" |
| XX-Large | 195 - 203 cm | 6'5" - 6'8" |
Specs
| Frame | Alpha Platinum Aluminum, internal storage, tapered head tube, Knock Block 2.0, internal guided routing, downtube guard, magnesium rocker link, Mino Link, ABP, Boost148, 120mm travel |
|---|---|
| Fork | RockShox Pike, DebonAir spring, Rush RC damper, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 130mm travel |
| Rear Shock | RockShox Deluxe Ultimate RCT, 185mm x 50mm |
| Wheels |
Front: Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 29'' Rear: Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Boost148, 12mm thru axle, 29'' |
| Tires | Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120tpi, 29x2.40'' |
| Crankset | Shimano Deore M6120, 30T ring, 55mm chainline, 170-175mm length |
| Shifters | Shimano XT M8100, 12 speed |
| Rear Derailleur | Shimano XT M8100, long cage |
| Cassette/Freewheel | Shimano SLX M7100, 10-51T, 12 speed |
| Chain | Shimano SLX M7100, 12 speed |
| Brakes |
Shimano M6120 4-piston hydraulic disc Shimano 4-piston hydraulic disc, M6100 lever, M6120 caliper |
| Rotors |
Shimano RT66, 6-bolt, 180mm Shimano RT66, 6-bolt, 160mm |
| Handlebars | Bontrager Line, alloy, 35mm, 27.5mm rise, 780mm width |
| Tape/Grips | Bontrager XR Trail Comp, nylon lock-on |
| Stem | Bontrager Elite, 35mm, 0 degree, 45mm length |
| Headset | Knock Block 2.0 Integrated, 72-degree radius (includes infinite-radius chip), sealed cartridge bearing, 1-1/8'' top, 1.5'' bottom |
| Seatpost | TranzX JD-YSP39, 150mm travel, internal routing, 34.9mm -or- Bontrager Line Dropper, 150mm travel, MaxFlow, internal routing, 34.9mm, 410mm length |
| Saddle | Bontrager Arvada, steel rails, 138mm width -or- Bontrager Verse P3, chromoly rails |
| Pedals | Sold Separately |
* Subject to change without notice.
Part Numbers
| Option | UPC | MPN |
|---|---|---|
| Penny flake / X-Large / 29-inch | 768682718100 | 5297463 |