Bike Comparison
    MSRP
    $5,499$579
    Where to Buy
    $1

    At

    $579

    At Trek

    Category
    CrosscountryCrosscountry
    Weight
    24.4 lbs32.2 lbs
    6.9
    2.4
    CarbonAluminum
    Fork
    RockShox SIDSuntour XCE
    Wheels
    Carbon
    27.5″27.5″ / 29″
    Brakes
    Hydraulic DiscMechanical Disc
    Groupset
    GX Eagle, Truvativ Stylo CarbonTourney, Altus
    Drivetrain
    1 × 122 × 7
    Suspension
    FullHardtail
    Front Travel
    100mm100mm
    Rear Travel
    100mm-
    Brand Site

    trekbikes.com

    trekbikes.com

    Summary
    The Trek Top Fuel 9.8 SL is a 27.5″ carbon frame full suspension crosscountry bike with high-end components.
    Similar Bikes
    Accessories
    Ride Feel

    Based on frame geometry and build specs.

    Terrain
    easyextreme
    Handling
    nimblestable
    2024 Marlin 4 Gen 2
    Other Crosscountry 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)

    26 mph

    2019 Top Fuel 9.8 SL

    22 mph

    2024 Marlin 4 Gen 2

    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

    OCLV Mountain Carbon main frame & seatstay, alloy chainstays, ABP, Full Floater, EVO link, tapered head tube, Mino Link, MicroTruss, Control Freak internal routing, Carbon Armor, PF92, Boost148 & G2 Geometry on 29ers, 100mm travel

    BB StandardBB86/BB92, Press Fit

    Size: XS, S, Alpha Silver Aluminum, curved top tube, internal routing, chainstay disc brake mount, rack and kickstand mount, 135x5mm QR; Size: M, ML, L, XL, Alpha Silver Aluminum, internal routing, chainstay disc brake mount, rack and kickstand mount, 135x5mm QR

    BB StandardBB86/BB92, Press Fit

    Fork

    RockShox SID RL, DebonAir spring, Motion Control damper, TwistLoc remote lockout, tapered steerer, G2 Geometry w/51mm offset on 29ers, Boost110, 100mm travel

    Travel100mm

    Spring TypeCoil

    Size: XS, SR Suntour XCE 28, coil spring, preload, 42mm offset for 27.5'' wheel, 100mm QR, 80mm travel; Size: S, SR Suntour XCE 28, coil spring, preload, 42mm offset for 27.5'' wheel, 100mm QR, 100mm travel; Size: M, ML, L, XL, SR Suntour XCE 28, coil spring, preload, 46mm offset for 29'' wheel, 100mm QR, 100mm travel

    Travel100mm

    Spring TypeCoil

    Bottom Bracket

    SRAM DUB Press Fit, 92mm

    VP BC73, 73mm, threaded cartridge

    Headset

    FSA IS-2, 1-1/8˝ top, 1.5˝ bottom

    Semi-integrated, 1-1/8''

    Stem

    Bontrager Pro, 31.8mm, 7 degree

    Size: XS, S, Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 50mm length; Size: M, Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 60mm length; Size: ML, L, Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 70mm length; Size: XL, Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 80mm length

    Handlebar

    Bontrager Race X Lite, OCLV Carbon, 31.8mm, 5mm rise

    Size: XS, S, Bontrager alloy, 31.8mm, 5mm rise, 690mm width; Size: M, ML, L, XL, Bontrager alloy, 31.8mm, 15mm rise, 750mm width

    Saddle

    Bontrager Montrose Elite, titanium rails

    Bontrager Verse Short, stainless steel rails

    Seatpost

    Bontrager Pro, OCLV Carbon, 31.6mm, 0mm offset

    Size: XS, S, Bontrager alloy, 31.6mm, 12mm offset, 330mm length; Size: M, Bontrager alloy, 31.6mm, 12mm offset, 360mm length; Size: ML, L, XL, Bontrager alloy, 31.6mm, 12mm offset, 400mm length

    Pedals

    Not included

    VP-536 nylon platform

    Grips

    Bontrager XR Endurance Comp, lock-on

    Groupset
    Rear Derailleur

    SRAM GX Eagle, Roller Bearing Clutch

    Shimano Tourney TY300

    Front Derailleur

    Shimano Altus M315, 34.9mm clamp, top swing, dual pull

    Crank

    Truvativ Stylo Carbon Eagle Dub, 32T

    Size: XS, S, M, ProWheel TM-CY10, 36/22, 170mm length; Size: ML, L, XL, ProWheel TM-CY10, 36/22, 175mm length

    Shifters

    SRAM GX Eagle, 12 speed

    Size: XS, S, M, ML, L, XL, Shimano EF500, 8 speed; Size: XS, S, M, ML, L, XL, Shimano EF500, 7 speed

    Cassette

    SRAM XG-1275 Eagle, 10-50, 12 speed

    Shimano TZ500, 14-34, 7 speed

    Chain

    SRAM GX Eagle

    KMC Z7, 7 speed

    Brakes

    Shimano Deore XT M8000 hydraulic disc

    Size: XS, S, M, ML, L, XL, Tektro MD-M280 mechanical disc; Size: XS, S, M, ML, L, XL, Tektro MD-M281 mechanical disc

    Wheels
    Rims

    Bontrager Kovee Elite 30 Carbon, Tubeless Ready, 54T Rapid Drive, Boost110 front, Boost148 rear (15.5: 142x12 rear), tubeless strips included, valves sold separately

    Tires

    Bontrager XR2 Team Issue, Tubeless Ready, 120 tpi, aramid bead, 29x2.20˝ (13.5 & 15.5: 27.5x2.20˝)

    Disc Rotors

    Tektro, 6-bolt, 160mm

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