Bike Comparison
    MSRP
    $1,829
    ($1,347)
    $1,829
    Where to Buy
    $1

    At

    $1

    At

    $1

    At

    Category
    GravelGravelGravel
    Weight
    31.4 lbs31.4 lbs29.3 lbs
    2.7
    2.7
    2.7
    SteelSteelSteel
    Fork
    AluminumAluminumAluminum
    Wheels
    AluminumAluminumAluminum
    Wheel Size
    700c700c700c
    Clearance
    2"2"2"
    Brakes
    Mechanical DiscMechanical DiscMechanical Disc
    Groupset
    Alivio, SoraAlivio, SoraGRX 400, Tiagra
    Drivetrain
    3 × 93 × 92 × 10
    Brand Site

    trekbikes.com

    trekbikes.com

    trekbikes.com

    Summary
    The Trek 520, Trek 520 Disc, and Trek 520 Grando are all steel frame gravel bikes with mechanical disc brakes. The 520 Grando has better components.
    Similar Bikes
    Accessories
    Ride Feel

    Based on frame geometry and build specs.

    Rider Position
    relaxedaggressive
    Terrain
    smoothrugged
    520
    520 Disc
    520 Grando
    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

    38 mph

    520 Disc

    33 mph

    520 Grando

    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

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

    Tire Clearance2"

    ColorsDiablo Red; Anthracite

    Size: 48, 63, Trek butted chromoly disc touring, rack and mudguard mounts, 135x5 mm QR; Size: 51, 54, 57, 60, butted chromoly disc touring, rack and mudguard mounts, 135x5 mm QR

    Tire Clearance2"

    ColorsDiablo Red; Anthracite

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

    Tire Clearance2"

    ColorsDiablo Red; Anthracite

    Fork

    Alloy disc touring, rack mounts, 100x5mm ThruSkew

    Alloy disc touring, rack mounts, 100x5 mm ThruSkew

    Alloy disc touring, rack mounts, 100x5mm ThruSkew

    Headset

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

    1-1/8" threadless, sealed cartridge bearings

    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

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

    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

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

    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

    Bontrager Evoke

    Bontrager Arvada, steel rails, 138mm width

    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

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

    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

    Wellgo nylon body, alloy cage

    Wellgo nylon body, alloy cage

    Groupset
    Rear Derailleur

    Shimano Alivio M4000, long cage, 36T max cog

    Shimano Alivio M4000, long cage, 36T max cog

    Shimano GRX RX400, long cage, 36T max cog

    Front Derailleur

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

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

    Shimano Tiagra 4700, 34.9mm clamp, down swing

    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

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

    Size: 48, 51, ProWheel forged alloy, 42/28, 2-piece, 170mm length; Size: 54, 57, 60, 63, ProWheel forged alloy, 42/28, 2-piece, 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

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

    Shimano Tiagra R4700, 10 speed

    Cassette

    Shimano HG200, 11-36, 9 speed

    Shimano HG200, 11-36, 9-speed

    Shimano HG50, 11-36, 10 speed

    Chain

    KMC X9

    KMC X9

    KMC X10, 10 speed

    Brakes

    TRP Spyre C 2.0 mechanical disc, 160mm rotor

    TRP Spyre C 2.0 mechanical disc, 160 mm rotor

    TRP Spyre C 2.0 mechanical disc, 160mm rotor

    Wheels
    Rims

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

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

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

    Spokes

    14g stainless steel

    14 g stainless steel

    Front Hub

    Shimano M475, 6-bolt disc, 100x5mm QR

    Shimano M475, 6-bolt disc, 100x5 mm QR

    Shimano M475, 6-bolt disc, 100x5mm QR

    Rear Hub

    Shimano M475, 6-bolt disc, 135x5mm QR

    Shimano M475, 6-bolt disc, 135x5 mm QR

    Shimano M475, 6-bolt disc, 135x5mm QR

    Tires

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

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

    Bontrager GR1 Expert, Hard-Case Lite, wire bead, 60 tpi, 700x40c

    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

    Size: 48, 51, 54, 57, 60, 63, Bontrager BackRack Deluxe, Interchange compatible, maximum load 25 kg; Size: 48, 51, 54, 57, 60, 63, Bontrager Carry Forward

    Bontrager Carry Forward

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