Fuel EX 8 is the ideal trail bike for riders who want a versatile full suspension ripper that makes soul-crushing climbs less painful, but can also huck rowdy trails. It hits the sweet spot of value and performance in our mountain bike lineup by combining high-end parts with a stout but light alloy frame, and 130mm rear/140mm front suspension for plenty of trail capability.

Specification
*Please note - spec applies to all sizes unless listed separately

Frameset
Frame: Alpha Platinum Aluminum, tapered head tube, Knock Block, Control Freak internal routing, downtube guard, ISCG 05, magnesium rocker link, Mino Link, ABP, Boost148, 130mm travel
Fork: Fox Rhythm 34, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt axle, 140mm travel
*Shock: Size: XS , S
Fox Performance Float EVOL, 3-position RE:aktiv damper, tuned by Trek Suspension Lab, 210mm x 52.5mm
Size: S , M , ML , L , XL , XXL
Fox Performance Float EVOL, 3-position RE:aktiv damper, tuned by Trek Suspension Lab, 210mm x 55mm
Max compatible fork travel: 150mm

Wheels
*Wheel front: Size: XS , S
Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 27.5''
Size: S , M , ML , L , XL , XXL
Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 29''
*Wheel rear: Size: XS , S
Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 54, 6-bolt, Boost148, 12mm thru axle, 27.5''
Size: S , M , ML , L , XL , XXL
Bontrager Line Comp 30, High Strength 6000 Series Aluminum rim, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12mm thru axle, 29''
Skewer rear: Bontrager Switch thru axle, removable lever
*Tire: 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, Inner Strength casing, aramid bead, 60 tpi, 29x2.50''
Tire part: Bontrager TLR sealant, 6oz
Rim strip: Bontrager TLR
Max tire size: Frame: 29x2.60", Fork: See manufacturer

Drivetrain
Shifter: Shimano XT M8100, 12 speed
Rear derailleur: Shimano XT M8100, long cage
*Crank: Size: XS , S , M , ML , L
Shimano SLX M7100, 30T alloy ring, 52mm chainline, 170mm length
Size: XL , XXL
Shimano SLX M7100, 30T alloy ring, 52mm chainline, 175mm length
Bottom bracket: Shimano MT500, 92mm, PressFit
Cassette: Shimano XT M8100, 10-51, 12 speed
Chain: Shimano SLX M7100, 12 speed
Max chainring size: 1x: 34T

Components
Saddle: Bontrager Arvada, hollow chromoly rails, 138mm width
*Seatpost: Size: XS , S
Bontrager Line Dropper, 100mm travel, internal routing, 31.6mm, 345mm length
Size: M , ML , L , XL , XXL
Bontrager Line Dropper, 150mm travel, internal routing, 31.6mm, 440mm length
*Handlebar: Size: XS , S
Bontrager Line, alloy, 35mm, 27.5mm rise, 750mm width
Size: M , ML , L , XL , XXL
Bontrager Line, alloy, 35mm, 27.5mm rise, 780mm width
Grips: Bontrager XR Trail Elite, nylon lock-on
*Stem: Size: XS , S
Bontrager Elite, 35mm, 0 degree, 35mm length
Size: M , ML , L , XL , XXL
Bontrager Elite, 35mm, 0 degree, 45mm length
Headset: Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom
*Brake: Size: XS , S
Shimano hydraulic disc, MT4100 lever, MT420 4-piston caliper
Size: XS , S , M , ML , L , XL , XXL
Shimano 4-piston hydraulic disc, MT4100 lever, MT420 caliper
*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, 203mm

Weight
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 300 pounds (136 kg).
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, materials, and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice. Prices shown are manufacturer's suggested retail prices.

Bike and frame weights are based off pre-production painted frames at time of publication. Weights may vary in final production.