Bike Comparison

The 2021 Trek 820 is a 26″ steel frame hardtail crosscountry bike with modest components and rim brakes.

    2021 Trek 820
    MSRP$439
    Where to Buy
    $1

    At

    CategoryCrosscountry
    Weight33.7 lbs
    FrameSteel
    ForkSuntour
    
    WheelsAluminum
    Wheel Size26″
    Brake TypeRim
    GroupsetTourney
    
    Drivetrain3 × 7
    Gear Range

    Trek 820

    23 mph
    SuspensionHardtail
    Front Travel75mm
    Rear Travel-
    SeatpostRigid
    Brand Sitetrekbikes.com

    Can't decide? Get free advice from a Curated Expert.

    Shop with an Expert
    Similar Bikes Available Now
    Riders Also Compared

    Spec Level

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

    Spec level →$0$100$200$300$400
    820

    Geometry

    Specs
    Frame

    Trek Custom Steel, rack mounts, 135x5mm QR

    Fork

    SR Suntour M-3030, coil spring, 100x5mm QR, 75mm travel

    Headset

    1-1/8'' threadless

    Stem

    Size: XS, Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 60mm length; Size: S, Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 80mm length; Size: M/L, L, Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 90mm length; Size: XL, Bontrager alloy, 31.8mm clamp, Blendr compatible, 7 degree, 100mm length

    Handlebar

    Size: XS, S, Bontrager alloy, 31.8mm, 15mm rise, 660mm width; Size: M/L, L, XL, Bontrager alloy, 31.8mm, 15mm rise, 690mm width

    Saddle

    Bontrager Sport

    Seatpost

    Size: XS, S, Bontrager alloy, 29.2mm, 12mm offset, 300mm length; Size: M/L, L, Bontrager alloy, 29.2mm, 12mm offset, 330mm length; Size: XL, Bontrager alloy, 29.2mm, 12mm offset, 400mm length

    Grips

    Bontrager SSR

    Groupset
    Rear Derailleur

    Shimano Tourney TY300, long cage, 34T max cog

    Front Derailleur

    Shimano Tourney TY500, 31.8mm clamp, top swing, dual pull

    Crank

    Shimano Tourney TY301, 42/34/24, 170mm length

    Shifters

    Shimano Tourney EF41, 7 speed

    Cassette

    Shimano TZ500, 14-28, 7 speed

    Chain

    KMC Z7, 7 speed

    Brakes

    Tektro alloy linear-pull

    Wheels
    Rims

    Bontrager AT-550, alloy, 36-hole, schrader valve

    Front Hub

    Formula FM21 alloy, 100x5mm QR

    Rear Hub

    Formula FM31 alloy, 7sp freewheel, 135x5mm QR