Bike Comparison
    MSRP
    $2,899
    $3,799
    Where to Buy
    $1

    At

    $1

    At

    Category
    TrailTrail
    Weight
    31.1 lbs30.6 lbs
    5.2
    5.3
    AluminumAluminum
    Fork
    RockShox 35 Gold RLFox Rhythm Float 34
    Shock
    Fox Float DPS PerformanceFox
    Wheels
    AluminumAluminum
    27.5″ / 29″27.5″ / 29″
    Brakes
    Hydraulic DiscHydraulic Disc
    Groupset
    NX EagleXT, SLX
    Drivetrain
    1 × 121 × 12
    Suspension
    FullFull
    Front Travel
    140mm140mm
    Rear Travel
    130mm130mm
    Brand Site

    trekbikes.com

    trekbikes.com

    Summary
    The Trek Fuel EX 7 and Trek Fuel EX 8 XT are both 27.5″ / 29″ aluminum frame full suspension trail bikes. The Fuel EX 7 has better components, while the Fuel EX 8 XT has a better fork.
    Similar Bikes
    Accessories
    Ride Feel

    Based on frame geometry and build specs.

    Terrain
    easyextreme
    Handling
    nimblestable
    Fuel EX 7
    Fuel EX 8 XT
    Other Trail bikes
    Gear Range

    A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

    Lowest gear

    (climbing)

    24 mph

    Fuel EX 7

    26 mph

    Fuel EX 8 XT

    Highest gear

    (descending)

    Spec Level

    Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

    Geometry
    Specs
    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

    BB StandardBB86/BB92, Press Fit

    Tire Clearance2.6"

    ColorsTrek Black / Radioactive Red; Dark Aquatic / Trek Black

    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

    BB StandardBB86/BB92, Press Fit

    Tire Clearance2.6"

    ColorRage Red to Dnister Black Fade

    Fork

    RockShox 35 Gold RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 140mm travel

    Travel140mm

    Spring TypeAir

    Fox Rhythm 34, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt axle, 140mm travel

    Travel140mm

    Spring TypeAir

    Shock

    Size: XS, S, Fox Performance Float EVOL, 3-position DPS damper, tuned by Trek Suspension Lab, 210mm x 52.5mm; Size: S, M, ML, L, XL, XXL, Fox Performance Float EVOL, 3-position DPS damper, tuned by Trek Suspension Lab, 210mm x 55mm

    Travel130mm

    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

    Travel130mm

    Bottom Bracket

    SRAM DUB, 92mm, PressFit

    Shimano MT500, 92mm, PressFit

    Headset

    Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom

    Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom

    Stem

    Bontrager Rhythm Comp, 31.8mm, Knock Block, 0 degree, 50mm length

    Size: XS, S, Bontrager Line, 35mm, Knock Block, 0 degree, 40mm length; Size: M, ML, L, XL, XXL, Bontrager Line, 35mm, Knock Block, 0 degree, 50mm length

    Handlebar

    Bontrager alloy, 31.8mm, 15mm rise, 750mm width

    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

    Saddle

    Bontrager Arvada, steel rails, 138mm width

    Bontrager Arvada, hollow chromoly rails, 138mm width

    Seatpost

    Size: XS, S, TranzX JD-YSP18, 100mm travel, internal routing, 31.6mm, 361mm length; Size: M, ML, L, XL, XXL, TranzX JD-YSP18, 150mm travel, internal routing, 31.6mm, 445mm length

    TypeDropper

    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

    TypeDropper

    Grips

    Bontrager XR Trail Comp, nylon lock-on

    Bontrager XR Trail Elite, nylon lock-on

    Groupset
    Rear Derailleur

    SRAM NX Eagle

    Shimano XT M8100, long cage, 51T max cog

    Crank

    Size: XS, S, SRAM NX Eagle, DUB, 30T steel ring, Boost (52mm chainline), 170mm length; Size: M, ML, L, XL, XXL, SRAM NX Eagle, DUB, 30T steel ring, Boost (52mm chainline), 175mm length

    Size: XS, S, Shimano SLX M7100, 30T alloy ring, Boost (52mm chainline), 170mm length; Size: M, ML, L, XL, XXL, Shimano SLX M7100, 30T alloy ring, Boost (52mm chainline), 175mm length

    Shifters

    SRAM NX Eagle, 12 speed

    Shimano XT M8100, 12 speed

    Cassette

    SRAM PG-1230 Eagle, 11-50, 12 speed

    Shimano XT M8100, 10-51, 12 speed

    Chain

    SRAM NX Eagle, 12 speed

    Shimano SLX M7100, 12 speed

    Brakes

    Shimano hydraulic disc, MT4100 lever, MT410 caliper

    TypeHydraulic Disc

    Shimano hydraulic disc, MT4100 lever, MT420 4-piston caliper

    TypeHydraulic Disc

    Wheels
    Rims

    Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle

    Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle

    Spokes

    DT Swiss Champion, J-Bend, Black

    DT Swiss Champion, J-Bend, Black

    Front Hub

    Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle

    Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle

    Rear Hub

    Bontrager alloy, sealed bearing, 6-bolt, Shimano MicroSpline freehub, Boost148, 12 mm thru axle

    Tires

    Size: XS, S, Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 27.5x2.40''; Size: XS, S, Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 27.5x2.60''; Size: S, M, ML, L, XL, XXL, Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 29x2.40''; Size: S, M, ML, L, XL, XXL, Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 29x2.60''

    Size: XS, S, Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 27.5x2.40''; Size: XS, S, Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 27.5x2.60''; Size: S, M, ML, L, XL, XXL, Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 29x2.40''; Size: S, M, ML, L, XL, XXL, Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 29x2.60''

    Disc Rotors

    Shimano RT56, 6-bolt, 180mm

    Size: XS, S, M, ML, L, XL, XXL, Shimano RT66, 6-bolt, 180mm; Size: M, ML, L, XL, XXL, Shimano RT66, 6-bolt, 203mm

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