Diamondback Hatch 3 Bike - 2021

Color:Dark Red Gloss
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Join the co-op today and get back an estimated $77.50 on this item.

TIme to explore the path less traveled? At home on dirt, gravel and pavement, the Diamondback Hatch 3 bike knows how to keep the adventure going, wherever it leads.

  • Features

    • Custom-formed aluminum frame features Progressive wheel sizing; wheels are 27.5 in. on sizes XS and S, and 29 in. on sizes M, L and XL
    • A 100 mm travel SR Suntour XCM-DS fork and grippy 2.25 in. wide knobby tires help you easily roll over bumps and potholes with confidence
    • Tektro M275 hydraulic disc brakes provide great stopping power
    • Shimano 3 x 7-speed drivetrain ensures you'll always find a comfortable pedaling pace
    • Built-in eyelets allow you to mount a rear rack and fenders so you can also use the Hatch as a commuter or city bike (rack and fenders not included)
    • Platform pedals included
    • Specs and images are subject to change


    Free Adjustment Period:
    New bikes go through a normal break-in period, after which they should be readjusted. All bicycles sold at REI include free adjustments for one year after purchase date—as many times as you need. Included: derailleur and brake adjustments, lateral wheel truing, hub and headset bearing adjustments, tire inflation and chain lubrication. Not included: replacement or installation of new components or accessories, any other services. Call your local REI Co-op Bike Shop for more information.
    View all Diamondback Hardtail Mountain Bikes
  • Technical Specs

    Best Use

    Mountain Biking

    Mountain Bike Style


    Bike Frame Material



    6061 Aluminum

    Bike Suspension

    Front Suspension


    SR Suntour XCM-DS with pre-load adjuster, 100 mm, for IS post mount disc

    Fork Travel

    100 millimeters


    Shimano Tourney TY301,42/34/24T

    Bottom Bracket

    Sealed cartridge bearing


    Shimano M310 3 x 7-Speed Rapid Fire shifter

    Front Derailleur

    Shimano Tourney TY500, dual-pull

    Rear Derailleur

    Shimano Tourney TX800

    Rear Cogs

    Shimano GH20 cassette, 7-speed, 12-32T

    Number of Gears

    21 gear(s)

    Brake Type

    Hydraulic Disc Brake


    Tektro M275 IS post mount hydraulic with 160 mm rotors front and rear

    Brake Levers

    Tektro M275 hydraulic


    Aluminum MTB DDM-2 double-wall, 32-hole

    Front Hub

    Formula DC-20F 6-bolt disc, quick-release

    Rear Hub

    Formula DC-22-7R 6-bolt disc, quick-release

    Wheel Size

    XS: 27.5 inches

    S: 27.5 inches

    M: 29 inches


    XS: Vee Tire Co. Rubber Rail Escape, 27.5 x 2.25 in.

    S: Vee Tire Co. Rubber Rail Escape, 27.5 x 2.25 in.

    M: Vee Tire Co. Rubber Rail Escape, 29 x 2.25 in.

    Tire Width

    2.25 inches

    Handlebar Shape

    Riser Bar


    Aluminum 31.8 mm bar, 25 mm rise


    Aluminum MTB 31.8 mm bar bore stem

    Seat Post

    Aluminum 27.2 post with 15 mm offset


    MTB Saddle


    Wellgo Plastic Body Platform


    1-1/8 in. semi-integrated, cartridge bearing


    XS: KMX Z-8

    S: KMX Z-9

    M: KMX Z-10





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