Bike Comparison
    FX 3 Disc2021 Trek
    Recommended
    MSRP
    $899
    Where to Buy
    —
    $1

    At

    Category
    		Fitness
    Weight
    		25.9 lbs
    4.0
    Frame
    		Aluminum
    Fork
    		Carbon
    Wheels
    		Aluminum
    Wheel Size
    		700c
    Brakes
    		Hydraulic Disc
    Motor
    Battery
    Groupset
    		Alivio, Acera
    Drivetrain
    		2 × 9
    Brand Site

    trekbikes.com

    Summary
    		The Trek FX 3 Disc is a 700c aluminum frame fitness bike with mid-range components and hydraulic disc brakes.
    Similar Bikes
    Accessories
    Ride Feel

    Based on frame geometry and build specs.

    Rider Position
    relaxedaggressive
    FX 3 Disc
    Other Fitness 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)

    36 mph

    FX 3 Disc

    Highest gear

    (descending)

    Spec Level

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

    Geometry
    Specs
    FX 3 Disc2021 Trek
    Frame

    Alpha Gold Aluminium, DuoTrap S-compatible, internal cable routing, flat-mount disc, rack and mudguard mounts, 135x5 mm QR

    Tire Clearance: 38c

    Color: Rage Red

    Fork

    FX Carbon, rack and mudguard mounts, flat-mount disc, 405 mm axle-to-crown. ThruSkew 5 mm QR

    Headset

    1-1/8'' threadless, sealed cartridge bearings

    Stem

    Size: S, Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length; Size: M, L, Bontrager Elite, 31.8 mm clamp, Blendr-compatible, 7-degree, 100 mm length; Size: XL, XXL, Bontrager Elite, 31.8 mm clamp, Blendr-compatible, 7-degree, 110 mm length

    Handlebar

    Size: S, M, Bontrager Satellite Plus IsoZone, alloy, 31.8 mm, 15 mm rise, 600 mm width; Size: L, XL, XXL, Bontrager Satellite Plus IsoZone, alloy, 31.8 mm, 15 mm rise, 660 mm width

    Saddle

    Bontrager H1

    Seatpost

    Bontrager alloy, 27.2 mm, 12 mm offset, 330 mm length

    Pedals

    Bontrager City pedals

    Grips

    Bontrager Satellite IsoZone Plus, lock-on, ergonomic

    Groupset
    Rear Derailleur

    Shimano Alivio M3100, long cage

    Front Derailleur

    Shimano Acera T3000, 34.9 mm clamp, top swing, dual pull

    Crank

    Size: S, M, Shimano MT210, 46/30, chain guard, 170 mm length; Size: L, XL, XXL, Shimano MT210, 46/30, chain guard, 175 mm length

    Shifters

    Size: S, M, L, XL, XXL, Shimano Acera M3000, 9 speed; Size: S, M, L, XL, XXL, Shimano Acera M3000, 2 -speed

    Cassette

    Shimano HG200, 11-36, 9 speed

    Chain

    KMC X9

    Brakes

    Shimano hydraulic disc, MT201 lever, UR300 calliper

    Wheels
    Rims

    Bontrager Tubeless Ready Disc, 32-hole, Presta valve

    Spokes

    14 g stainless steel

    Front Hub

    Formula DC-20, alloy, 6-bolt, 5x100 mm QR

    Rear Hub

    Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5 mm QR

    Tires

    Bontrager H2 Comp, wire bead, 30 tpi, 700x32c

    Disc Rotors

    Shimano RT26, 6-bolt,160 mm

    Riders Also Compared