Bike Comparison
    520 Disc2020 Trek
    Recommended
    MSRP
    $1,679
    Where to Buy
    —
    $1

    At

    Category
    		Gravel
    Weight
    		7.2 lbs (frame)
    2.7
    Frame
    		Steel
    Fork
    		Aluminum
    Wheels
    		Aluminum
    Wheel Size
    		700c
    Brakes
    		Mechanical Disc
    Motor
    Battery
    Groupset
    		Alivio, Sora
    Drivetrain
    		3 × 9
    Brand Site

    trekbikes.com

    Summary
    		The Trek 520 Disc is a steel frame gravel bike with mid-range components and mechanical disc brakes.
    Similar Bikes
    Accessories
    Ride Feel

    Based on frame geometry and build specs.

    Rider Position
    relaxedaggressive
    Terrain
    smoothrugged
    520 Disc
    Other Gravel 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)

    38 mph

    520 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
    520 Disc2020 Trek
    Frame

    Trek butted chromoly disc touring, rack & fender mounts, 135x5mm QR

    Fork

    520 alloy disc touring, rack mounts, 100x5mm ThruSkew

    Headset

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

    Stem

    Size: 48, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 80mm length; Size: 51, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 90mm length; Size: 54, 57, Bontrager Elite, 31.8mm clamp, Blendr compatible, 7 degree, 100mm length; Size: 60, 63, Bontrager Elite, 31.8mm clamp, Blendr compatible, 7 degree, 110mm length

    Handlebar

    Size: 48, Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 40cm width; Size: 51, 54, Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 42cm width; Size: 57, 60, 63, Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 44cm width

    Saddle

    Bontrager Evoke

    Seatpost

    Size: 48, Bontrager alloy, 27.2mm, 12mm offset, 250mm length; Size: 51, 54, 57, 60, 63, Bontrager alloy, 27.2mm, 12mm offset, 330mm length

    Pedals

    Wellgo nylon body, alloy cage

    Groupset
    Rear Derailleur

    Shimano Alivio M4000, long cage, 36T max cog

    Front Derailleur

    Shimano Sora R3030, 34.9mm (w/28.6 adapter) clamp

    Crank

    Size: 48, 51, Shimano Alivio T4060, 48/36/26, 2-piece w/chain guard, 170mm length; Size: 54, 57, 60, 63, Shimano Alivio T4060, 48/36/26, 2-piece w/chain guard, 175mm length

    Shifters

    Size: 48, 51, 54, 57, 60, 63, Shimano Sora R3000, 9 speed; Size: 48, 51, 54, 57, 60, 63, Shimano Sora R3030, 3 speed

    Cassette

    Shimano HG200, 11-36, 9 speed

    Chain

    KMC X9

    Brakes

    TRP Spyre C 2.0 mechanical disc, 160mm rotor

    Wheels
    Rims

    Bontrager Affinity Disc, Tubeless Ready, 36-hole, 21mm width, presta valve

    Spokes

    14g, stainless steel, silver

    Front Hub

    Shimano M475, 6-bolt disc, 100x5mm QR

    Rear Hub

    Shimano M475, 6-bolt disc, 135x5mm QR

    Tires

    Bontrager H1 Hard-case Ultimate, 700x38c w/reflective sidewall

    Accessories
    Racks

    Size: 48, 51, 54, Bontrager BackRack Deluxe, Interchange compatible, size small; Size: 48, 51, 54, 57, 60, 63, Bontrager Carry Forward; Size: 57, 60, 63, Bontrager BackRack Deluxe, Interchange compatible, size large

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