Trek Top Fuel 8 Mountain Bike
Active Braking Pivot
Active Braking Pivot allows our engineers to tune how the suspension reacts to acceleration and braking forces independently. That means you get more confident control when you need it most.
Quick and in control
120mm of rear travel combined with progressive trail geometry gives you a fast, responsive ride that helps you keep your cool when the trail turns rowdy.
Internal Storage
Internal frame storage makes it easy to ditch the pack and still carry your ride essentials.
Hassle-free routing
Guided internal cable routing keeps Top Fuel quiet on the trail and maintenance a breeze.
Will my bike have a curved top tube?
Smaller frames (XS and S) have a curved top tube. This design makes for a lower standover height, which allows shorter riders to straddle the 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, 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 SID, DebonAir spring, Rush RL damper, lockout, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 120mm travel |
| Shock | RockShox Deluxe Ultimate RCT, 185mm x 50mm |
| Max compatible fork travel | 130mm (541mm axle-to-crown) |
| Wheel front | Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle |
|---|---|
| Wheel rear | Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Boost148, 12mm thru axle |
| Skewer rear | Bontrager Switch thru axle, removable lever |
| Tire | Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120tpi, 29×2.40” |
| Tire part | Bontrager TLR sealant, 6oz |
| Rim strip | Bontrager TLR |
| Max tire size | Frame: 29×2.50″, Fork: See manufacturer |
| Shifter | Shimano XT M8100, 12 speed |
|---|---|
| Rear derailleur | Shimano XT M8100, long cage |
| *Crank | Size: S, M, M/L, L Shimano Deore M6120, 30T ring, 55mm chainline, 170mm length |
| Size: XL, XXL Shimano Deore M6120, 30T ring, 55mm chainline, 175mm length |
|
| Bottom bracket | Shimano SM-BB52, 73mm, threaded external bearing |
| Cassette | Shimano SLX M7100, 10-51, 12 speed |
| Chain | Shimano SLX M7100, 12 speed |
| Max chainring size | 1x: 36T round, 34T oval, min 28T |
| Saddle | Bontrager Arvada, steel rails, 138mm width |
|---|---|
| *Seatpost | Size: S TranzX JD-YSP39, 100mm travel, internal routing, 34.9mm |
| Size: M, M/L TranzX JD-YSP39, 150mm travel, internal routing, 34.9mm |
|
| Size: L, XL, XXL TranzX JD-YSP39, 170mm travel, internal routing, 34.9mm |
|
| *Handlebar | Size: S Bontrager Line, alloy, 35mm, 27.5mm rise, 750mm width |
| Size: M, M/L, L, XL, XXL Bontrager Line, alloy, 35mm, 27.5mm rise, 780mm width |
|
| 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 |
| Brake | Shimano 4-piston hydraulic disc, M6100 lever, M6120 caliper |
| *Brake rotor | Size: S, M, M/L, L, XL, XXL Shimano RT66, 6-bolt, 160mm |
| Size: S, M, M/L, L, XL, XXL Shimano RT66, 6-bolt, 180mm |
| Bag | Bontrager BITS Internal Frame Storage Bag |
|---|
| Weight | M – 14.26 kg / 31.44 lbs (with TLR sealant, no tubes) |
|---|---|
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg). |
| Size | Rider Height | Inseam |
|---|---|---|
| S |
153 – 167 cm 5’0″ – 5’6″ |
72 – 79 cm 28″ – 31″ |
| M |
161 – 172 cm 5’3″ – 5’8″ |
76 – 81 cm 30″ – 32″ |
| M/L |
166 – 179 cm 5’5″ – 5’10” |
77 – 84 cm 30″ – 33″ |
| L |
177 – 188 cm 5’10” – 6’2″ |
83 – 88 cm 33″ – 35″ |
| XL |
186 – 196 cm 6’1″ – 6’5″ |
87 – 92 cm 34″ – 36″ |
| 2XL |
195 – 203 cm 6’5″ – 6’8″ |
92 – 95 cm 36″ – 37″ |
Janez Lavric –
Very easy to make a purchase, quick and easy for returns,
Brilliant
Ewan –
Always a quick and efficient service
Price is always nice as well
Cheers
Edvinas –
Reasonably priced parts. Shipping is amazingly fast.
Fast refund on purchased items that became unavailable.