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When your road ride takes a detour down a forest road, you'll want a Co-op Cycles ARD 1.1 bike, which features a versatile Shimano Claris 2 x 8 drivetrain, mechanical disc brakes and full-carbon fork.

  • Features

    • An aluminum frame and full-carbon fork offer long-lasting toughness at a low weight
    • A front thru-axle adds extra control to every trip
    • Shimano Claris 2 x 8 drivetrain lets you shift smoothly through 16 gears for all-road cruising
    • Dual-piston mechanical disc brakes deliver solid stopping power on or off-road and across a variety of weather conditions
    • High-quality, lightweight Co-op Cycles wheelset delivers top-of-the-line performance; fits 700x28 tires
    • Bicycle weight limit is 300 lbs. total, including rider + all gear carried on the bike and on the rider's body
    • Pedals sold separately; specs 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 Co-op Cycles Endurance Bikes
  • Technical Specs

    Best Use

    Road Cycling

    Bike Frame Material



    Co-op Cycles 6061 double-butted aluminum frame


    One-piece carbon fork, tapered carbon steerer, for flat mount disc, includes fender mounts

    Bike Suspension

    No Suspension


    Shimano Claris, 50x34T

    Bottom Bracket

    Shimano cartridge 68mm


    Shimano Claris

    Front Derailleur

    Claris, band-type

    Rear Derailleur

    Shimano Claris

    Rear Cogs

    Shimano CS-HG31, 11-34, 8 speed

    Number of Gears


    Brake Type

    Mechanical Disc Brake


    Promax cable-actuated dual piston mechanical disc brake

    Brake Levers

    Shimano Claris


    Co-op Cycles, 32 hole

    Front Hub

    Co-op Cycles, 32 hole

    Rear Hub

    Co-op Cycles, 32 hole

    Wheel Size



    CST recourse 700x28mm, puncture protection

    Tire Width

    28 millimeters

    Handlebar Shape

    Drop Bar


    Co-op Cycles aero-ergo design; 31.8mm, 12 degree flare


    Co-op Cycles 6061, 31.8, 6 degree rise

    Seat Post

    Co-op Cycles 6016 AL, 31.6 diameter


    Co-op cycles


    Sold separately


    Integrated headset


    KMC, 8 speed


    22 lbs. 10.6 oz.

    Bike Weight

    Bike weight is based on median size, as sold, or the average of two median sizes.



  • Size Chart

    S M L XL
    Height Range 5'3" - 5'6" 5'6"- 5'9" 5'9" - 6'0" 6'0" - 6'3"
    Reach 378 380 384 394
    Stack 541 564 588 607
    Effective Top Tube 525 540 560 580
    Seat Tube Center-Top 440 490 520 550
    Standover Height 732 769 797 825
    Head Tube Length 130 155 180 200
    Head Tube Angle (degrees) 71.5 72.3 72.3 73
    Seat Tube Angle (degrees) 75 74 73.3 73
    Wheelbase 1004 1003 1011 1021
    Chainstay 420 420 420 420
    Fork Offset 50 50 50 50

    Sizing Notes

    Measurements are stated in millimeters unless otherwise indicated.

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