Co-op Cycles ADV 4.2 Bike

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Load it down but ride straight up. Co-op Cycles ADV 4.2 is a beast of an off-road touring bike, with gearing that'll get you up a mountain, an adjustable suspension seatpost and reliable disc brakes.

  • Features

    • Burly 6061 aluminum frame offers light weight, stability and strength
    • Shimano 22-speed drivetrain is designed for ease of use and reliability along with low maintenance; it's ideal for the loads and long distances of touring or bikepacking
    • Microshift CNC thumb shifters make shifting easy and intuitive
    • 11-42 rear cassette offers extra-low gearing for climbing when fully loaded
    • Cane Creek Thudbuster suspension seatpost absorbs road shock; adjust it for rider weight and amount of suspension desired
    • Hydraulic disc brakes supply precise, powerful speed control
    • Jones Loop H-Bar handlebar gives you a wide range of hand positions as well as room for cockpit bags (bags not included)
    • WTB Scraper rims with grippy but fast-rolling WTB Ranger tires offer reliable performance both on- and off-road
    • Comes ready to travel with a sturdy, custom aluminum front and rear racks
    • Bicycle weight limit is 300 lbs. total, including rider + all gear carried on the bike and on the rider's body
    • Pedals not included
    • Specs and images are subject to change


    This bike comes with Coast to Coast Support, which includes:
    • 1 year of free adjustments (see more below)
    • In-store bike assembly
    • Pickup in store or curbside
    • Bike experts available at 170+ bike shops
    REI Co-op Members get more:
    • Free flat tire repairs (labor only; parts not included)
    • 20% off shop services
    More about our free adjustments:
    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 the Co-op Cycles ADV Product Line View all Co-op Cycles Gravel Bikes
  • Technical Specs

    Best Use

    Bike Touring

    Gravel Cycling



    6061 aluminum


    6061 aluminum

    Bike Suspension

    Seat Suspension


    Shimano SLX 36/24

    Bottom Bracket



    Microshift thumb shifters

    Front Derailleur

    Shimano SLX

    Rear Derailleur

    Shimano SLX GS Shadow Plus

    Rear Cogs

    Shimano SLX, 11-42, 11-speed

    Number of Gears

    22 gear(s)

    Brake Type

    Hydraulic Disc Brake


    Shimano M6000

    Brake Levers

    Shimano M6000


    WTB Scraper i45

    Front Hub

    Shimano Deore

    Rear Hub

    Shimano Deore

    Wheel Size

    27.5 inches


    WTB Ranger 27.5 x 2.8

    Tire Width

    2.8 inches

    Handlebar Shape

    Trekking Bar


    Jones Loop H-Bar


    Co-op Cycles aluminum

    Seat Post

    Cane Creek Thudbuster suspension


    WTB Pure V Race


    Sold separately




    Shimano CN-HG601


    35 lbs.

    Bike Weight

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



  • Size Chart

    XS S M L XL
    Height Range 5'0"-5'3" 5'3"-5'6" 5'6"-5'9" 5'9"-6'0" 6'0"-6'3"
    Reach 390.5 406 419.5 432.9 443.2
    Stack 573.9 587.1 606 624.9 653.3
    Effective Top Tube 560 580 600 620 640
    Seat Tube Center-Top 330 370 420 470 520
    Standover Height 679.6 708.6 744.6 778.4 814.3
    Head Tube Angle (degrees) 70.3 71 71 71 71
    Seat Tube Angle (degrees) 73 73 73 73 73
    Wheelbase 1084.3 1093.7 1113.7 1133.7 1153.7
    Chainstay 455 455 455 455 455
    Fork Offset 55 50 50 50 50

    Sizing Notes

    All measurements are stated in millimeters or degrees unless otherwise indicated.

    How we measure bikes

    1. Standover Height Standover Height is a measurement from the ground to the top of the top tube, measured at the midpoint of the top tube.
    2. Reach Reach is the horizontal distance from the center of the cranks to the center of the head tube, measured at head tube level.
    3. Stack Stack is the vertical distance from the center of the cranks to the center of the head tube, measured to the top of the head tube.
    4. Effective Top Tube Effective top tube is the distance from the center of the head tube to the center of the seat tube/seat post, measured parallel to the ground.
    5. Seat Tube Center to Top Seat Tube length is the measurement of the seat tube, from the center of the cranks to the top of the seat tube.
    6. Head Tube Length Head Tube Length is measured from the bottom to the top of the head tube.
    7. Head Tube Angle Head Tube Angle is the acute angle between the head tube and the ground (measured towards the rear of the bike)
    8. Seat Tube Angle Seat Tube Angle is the acute angle between the seat tube and the ground (measured towards the rear of the bike).
    9. Bottom Bracket Height Bottom Bracket Height is a measurement taken vertically from the ground up to the center of the cranks.
    10. Wheelbase Wheelbase is the measurement from the center of the front axle to the center of the rear axle.
    11. Chainstay Length Chainstay Length is the measurement from the center of the cranks to the center of the rear axle.
    12. Fork Offset Fork Offset, or rake, is the distance from the front axle to a line drawn parallel to the center of the head tube or steering axis.
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