Trek Fuel EX 8 Gen 5
Experience the ultimate in performance, versatility, and efficiency with Trek's Fuel EX 8 Gen 5. From technical trails to epic backcountry rides, this bike is designed to tackle every terrain—all with a lightweight, nimble feel. Take control of your journey and own the trail!
It's right for you if...
You're cool with your wheels leaving the ground, but you also like to go the distance on marathon singletrack sessions. You want a bike that lets you crush any trail, and your priority is on the parts.
The tech you get
An alloy frame, 140 mm FOX Rhythm 34 fork and 130 mm of rear travel with an extra-efficient RE:aktiv damper. A Shimano XT 1x12 drivetrain with an extra-low 51-tooth climbing gear, powerful 4-piston brakes, Bontrager wheels with a 54-tooth Rapid Drive hub for fast engagement plus a Bontrager Line dropper post.
The final word
Fuel EX 8 gives you added efficiency with Shimano's latest, widest-range drive train and Trek's unique RE:aktiv damper that provides firm pedalling support without giving up any plush compliance.
Specifications
*spec applies to all sizes unless otherwise noted
| Frame | Alpha Platinum Aluminium, tapered head tube, Knock Block, Control Freak internal routing, downtube guard, ISCG 05, magnesium rocker link, Mino Link, ABP, Boost148, 130 mm travel |
|---|---|
| Fork | Fox Rhythm 34, Float EVOL air spring, GRIP damper, tapered steerer, 44 mm offset, Boost110, 15 mm Kabolt axle, 140 mm travel |
| *Shock | Size: XS , S Fox Performance Float EVOL, 3-position RE:aktiv damper, tuned by Trek Suspension Lab, 210 mm x 52.5 mm |
| Size: S , M , ML , L , XL , XXL Fox Performance Float EVOL, 3-position RE:aktiv damper, tuned by Trek Suspension Lab, 210 mm x 55 mm |
|
| Max compatible fork travel | 150mm (561mm axle-to-crown) |
| Wheel front | Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle |
|---|---|
| Wheel rear | Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Shimano MicroSpline freehub, Boost148, 12 mm thru axle |
| Hub front | Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle |
| *Hub rear | Size: XS , S , M , ML , L , XL , XXL Bontrager alloy, sealed bearing, 6-bolt, Rapid Drive 108, Shimano MicroSpline freehub, Boost148, 12 mm thru axle |
| Size: L Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Shimano MicroSpline freehub, Boost148, 12 mm thru axle |
|
| Skewer rear | Bontrager Switch thru-axle, removable lever |
| *Rim | Size: XS , S , M , ML , L , XL , XXL Bontrager Line Comp 30, Tubeless Ready, 28-hole, Presta valve |
| Size: L Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle |
|
| *Tyre | Size: XS , S Bontrager XR5 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 60 tpi, 27.5x2.50" |
| Size: S , M , ML , L , XL , XXL Bontrager XR5 Team Issue, Tubeless Ready, aramid bead, 120 tpi, 29x2.50" |
|
| Size: L Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 29.x2.40" |
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| Size: L Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 29x2.60" |
|
| Tyre part | Bontrager TLR sealant, 180 ml/6 oz |
| Max tyre size | Frame: 29x2.60" Fork: See manufacturer |
| Shifter | Shimano XT M8100, 12-speed |
|---|---|
| Rear derailleur | Shimano XT M8100, long cage |
| Bottom bracket | Shimano MT500, 92 mm, PressFit |
| Cassette | Shimano XT M8100, 10-51, 12-speed |
| Chain | Shimano SLX M7100, 12-speed |
| Max. chainring size | 34T |
| Saddle | Bontrager Arvada, hollow chromoly rails, 138 mm width |
|---|---|
| *Seatpost | Size: XS , S Bontrager Line Dropper, 100 mm travel, internal routing, 31.6 mm, 345 mm length |
| Size: M , ML , L , XL , XXL Bontrager Line Dropper, 150mm travel, internal routing, 31.6 mm, 440mm length |
|
| *Handlebar | Size: XS , S Bontrager Line, alloy, 35 mm, 27.5 mm rise, 750 mm width |
| Size: M , ML , L , XL , XXL Bontrager Line, alloy, 35 mm, 27.5 mm rise, 780 mm width |
|
| Grips | Bontrager XR Trail Elite, nylon lock-on |
| *Stem | Size: XS , S Bontrager Elite, 35 mm, 0-degree, 35 mm length |
| Size: M , ML , L , XL , XXL Bontrager Elite, 35 mm, 0-degree, 45 mm length |
|
| Size: L Bontrager Line, 35 mm, Knock Block, 0-degree, 50 mm length |
|
| Brake | Shimano 4-piston hydraulic disc, MT4100 lever, MT420 calliper |
| *Brake rotor | Size: XS , S , M , ML , L , XL , XXL Shimano RT66, 6-bolt, 180mm |
| Size: M , ML , L , XL , XXL Shimano RT66, 6-bolt, 203 mm |
| Weight | M - 13.86 kg / 30.56 lbs (with TLR sealant, no tubes) |
|---|---|
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb). |
