Trek Fuel EX 8 Gen 7 (2026)

Fuel EX 8 is the trail bike designed for riders who always want to push the limits, from the first singletracks to the most demanding mountain rides. The Alpha NEXT Platinum frame offers lightness, stiffness and responsiveness, turning every pedal stroke into pure acceleration.

The Fox Performance suspension with 145mm rear travel and 150mm front keeps the bike glued to the ground: total control on descents, constant traction on climbs, confidence on technical sections. The robust Bontrager Line alloy wheels are made to withstand the abuse of the most aggressive trail riding.

The SRAM Eagle 70 drivetrain ensures smooth, precise shifting even under load, while the powerful SRAM DB 8 4-piston hydraulic disc brakes deliver modular, immediate braking in all conditions.

With Fuel EX 8 you can truly tailor the bike to your needs: choose the versatile EX geometry , unleash your creativity with the MX configuration, or dominate the most extreme trails with the LX setup. Fuel EX 8 is the ideal mountain bike for anyone looking for a modern trail bike , fast and fun on any terrain.

TECHNICAL SPECIFICATIONS

Frame

• Material: Alpha NEXT Platinum Aluminum

• Features: Internal storage, ZS headset, adjustable leverage ratio, guided internal cable routing, interchangeable alloy rocker, interchangeable lower shock mount, downtube protection, shuttle protection

• Standards: BSA 73, ISCG 05, ABP, UDH, Boost148

• Adjustable travel: 145mm-160mm

Fork

• Model: Fox Rhythm 36

• Spring: Float EVOL pneumatic

• Damper: GRIP

• Steerer: Tapered, 44mm offset

• Axle: Boost110, Kabolt X 15mm thru-axle

• Travel: 150mm

Suspension

• Model: Fox Performance Float X

• Shock: 2 positions, 205mm x 60mm

Wheels

• Front hub: Bontrager alloy, sealed bearing, alloy axle, 6 bolts, Boost110, 15mm thru-axle

• Rear hub: Bontrager alloy, sealed bearing, 6 bolts, Rapid Drive 108, Shimano freehub, Boost148, 12mm thru-axle

• Rear axle: Bontrager Switch thru-axle, removable lever

• Rim: Bontrager Line TLR 30, Tubeless Ready, 28H, Presta valve

• Spokes: Stainless steel 14g, black

• Tires:

  • Size S: Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60 TPI, 27.5x2.50"

  • Size S, M, L, XL: Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60 TPI, 29x2.50"

• Nipple protection: Bontrager TLR

• Max tire size: Frame 29x2.50", Fork: check manufacturer data

Drivetrain

• Shifter: SRAM Eagle 70, 12-speed

• Rear derailleur: SRAM Eagle 70, T-Type

• Crankset: SRAM Eagle 70, DUB, 30T steel, T-Type, chainline 55mm, length 170mm

• Bottom bracket: SRAM DUB MTB Wide, 73mm, BSA threading

• Cassette: SRAM Eagle XS-1270, T-Type, 10-52, 12-speed

• Chain: SRAM Eagle 70, T-Type, 12-speed

• Max chainring size: Max 34T (oval 32T), Min 30T (oval 32T)

Components

• Saddle: Bontrager Verse P3, Cr-Mo rails

• Dropper post:

  • Size S: Bontrager Line, 150mm travel, MaxFlow, internal cable routing, 34.9mm, 410mm length

  • Size M: Bontrager Line, 170mm travel, MaxFlow, internal cable routing, 34.9mm, 450mm length

  • Size L, XL: Bontrager Line, 200mm travel, MaxFlow, internal cable routing, 34.9mm, 515mm length

• Handlebar: Race Face Turbine, alloy, 35mm, 40mm rise, 780mm width

• Grips: Trek Line Comp, nylon lock-on

• Stem: Bontrager Elite, 35mm, 0°, 45mm length

• Headset: FSA Orbit, sealed cartridge bearing, 1-1/8'' top, 1.5'' bottom, 1.5 crown

• Brake: SRAM DB 8 hydraulic disc, 4-piston

• Brake rotor:

  • Size S, M, L, XL: SRAM CenterLine, 6 bolts, rounded edge, 200mm

  • Size S, M, L, XL: SRAM Centerline 2.0, 6 bolts, 200mm

  • Size S, M, L, XL: SRAM Centerline 2.0, 6 bolts, 180mm

• Rotor size: Max frame rotor 203mm, min 180mm; Fork: check manufacturer

Weight

• Bike weight: M - 16.89 kg / 37.24 lbs (with TLR sealant, without tube)

• Weight limit: Maximum total weight (bike + rider + load) 136 kg

The manufacturer reserves 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, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice. The prices shown are the manufacturer's suggested retail prices.