Trek Fuel EX 8 (Gen 7) Full Suspension Bike 2026

Fuel EX 8 is a confident and versatile trail bike built to get after it. It comes ready to rip with an Alpha NEXT Platinum frame, Fox performance suspension package with 145mm/150mm travel (rear, front), alloy Bontrager Line wheels, and a SRAM Eagle 70 transmission that keeps shifts smooth, even under load. It's topped off with 4-piston SRAM DB 8 hydraulic disc brakes to keep you stopping on a dime.

SPECIFICATIONS

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

Frameset
Specifications
*Mainframe    Size: S, XL, L, M
Alpha NEXT Platinum aluminum, internal storage, ZS headset, adjustable leverage rate, guided internal routing, interchangeable alloy rocker link, interchangeable lower shock mount, downtube guard, shuttle guard, BSA 73, ISCG 05, ABP, UDH, Boost148, adaptable travel 145mm-160mm
*Fork    Size: S, XL, L, M
Fox Rhythm 36, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt X axle, 150mm travel
*Shock    Size: S, XL, L, M
Fox Performance Float X, 2-position damper, 205mm x 60mm

Wheels
Specifications
*Front Hub    Size: S, XL, L, M
Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle
*Rear Hub    Size: S, XL, L, M
Bontrager alloy, sealed bearing, 6-bolt, Rapid Drive 108, Shimano freehub, Boost148, 12mm thru axle
*Rear Skewer    Size: S, XL, L, M
Bontrager Switch thru axle, removable lever
*Rim    Size: S, XL, L, M
Bontrager Line TLR 30, Tubeless Ready, 28-hole, Presta valve
*Tire    Size: S, XL, L, M
Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.50"
Size: S
Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 27.5x2.50"
*Tire Part    Size: S, XL, L, M
Bontrager TLR sealant, 180 ml/6 oz
*Rim Strip    Size: S, XL, L, M
Bontrager TLR
Max tire size    Frame: 29x2.50", Fork: See manufacturer

Drivetrain
Specifications
*Shifter    Size: S, XL, L, M
SRAM Eagle 70, 12 speed
*Rear Derailleur    Size: S, XL, L, M
SRAM Eagle 70, T-Type
*Crank    Size: S, XL, L, M
SRAM Eagle 70, DUB, 30T steel, T-Type, 55mm chainline, 170mm length
*Bottom Bracket    Size: S, XL, L, M
SRAM DUB MTB Wide, 73mm, BSA threaded
*Cassette    Size: S, XL, L, M
SRAM Eagle XS-1270, T-Type,10-52, 12 speed
*Chain    Size: S, XL, L, M
SRAM Eagle 70, T-Type, 12 speed
Max chainring size    1x: 34T round, 32T oval, min 30T, 32T oval

Components
Specifications
*Saddle    Size: S, XL, L, M
Bontrager Verse P3, chromoly rails
*Seatpost    Size: S
Bontrager Line Dropper, 150mm travel, MaxFlow, internal routing, 34.9mm, 410mm length
Size: M
Bontrager Line Dropper, 170mm travel, MaxFlow, internal routing, 34.9mm, 450mm length
Size: XL, L
Bontrager Line Dropper, 200mm travel, MaxFlow, internal routing, 34.9mm, 5150mm length
*Handlebar    Size: S, XL, L, M
Race Face Turbine, alloy, 35mm, 40mm rise, 780mm width
*Grips    Size: S, XL, L, M
Trek Line Comp, nylon lock-on
*Stem    Size: S, XL, L, M
Bontrager Elite, 35mm, 0 degree, 45mm length
*Headset    Size: S, XL, L, M
FSA Orbit, sealed cartridge bearing, 1-1/8'' top, 1.5'' bottom, 1.5 crown
*Brake    Size: S, XL, L, M
SRAM DB 8 4-piston hydraulic disc
*Brake Rotor    Size: S, XL, L, M
SRAM Centerline 2.0, 6-bolt, 180mm
Size: S, XL, L, M
SRAM Centerline 2.0, 6-bolt, 200mm
Rotor size    Max brake rotor sizes - Frame: 203mm, min 180mm, Fork: see fork manufacturer

Weight
Specifications
Weight    M - 16.89 kg / 37.24 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.

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