Co-op Cycles DRT 2.1 Bike

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Co-op Cycles flagship DRT 2.1 bike moves you up to thru-axles, a clutch-style Shimano SLX Shadow Plus rear derailleur and 27.5+ wheels that stick to the roughest downhill singletrack.

  • Features

    • 1 x 11 Shimano SLX drivetrain eliminates the front derailleur to enable swift, streamlined shifting and reduce overall weight
    • Shimano SLX Shadow Plus clutch-style rear derailleur decreases chain slap and makes shifts more reliable
    • Front suspension features 120mm of travel and a remote lockout so you can quickly lock the fork for climbing efficiency
    • 27.5 plus tires provides lots of traction, improving handling and ensuring a smoother ride on even the roughest of terrain
    • Internal cable routing is ready for a dropper post upgrade
    • Fits 29" wheels for a more cross-country feel (sold separately)
    • Wheels are ready for a tubeless tire setup
    • Shimano hydraulic disc brakes deliver reliable stopping power on or off-road and in variable weather conditions
    • Full-fender and rack compatible, ready for bikepacking adventure
    • Front and rear thru-axles provide added rigidity
    • Bicycle weight limit is 300 lbs. total, including rider + all gear carried on the bike and on the rider's body
    • 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 DRT Product Line View all Co-op Cycles Hardtail Mountain Bikes
  • Technical Specs

    Best Use

    Mountain Biking


    Mountain Bike Style



    Co-op Cycles 6061 double-butted aluminum

    Bike Suspension

    Front Suspension


    X Fusion 27.5 plus suspension fork, air sprung with rebound adjustment, quick flip remote lock-out

    Fork Travel

    120 millimeters


    Shimano SLX

    Bottom Bracket

    Shimano BB-MT800


    Shimano SLX

    Rear Derailleur

    Shimano SLX Shadow +

    Rear Cogs

    Shimano SLX, 11-42, 11 speed

    Number of Gears


    Brake Type

    Hydraulic Disc Brake


    Shimano SLX Hydraulic

    Brake Levers

    Shimano SLX


    WTB Scraper i45 27.5

    Front Hub

    Shimano SLX 27.5 plus/boost with thru-axle

    Rear Hub

    Shimano SLX 27.5 plus/boost with thru-axle

    Wheel Size

    27.5+ inches


    WTB Ranger 2.8

    Tire Width

    2.8 inches

    Handlebar Shape

    Riser Bar


    Co-op Cycles AL6061 double-butted riser bar


    Co-op Cycles, 31.8, 0 degree rise

    Seat Post

    Co-op Cycles 6016 AL, 31.6 diameter


    WTB Volt Sport


    Co-op Cycles MTB style with alloy cage


    Internal headset


    Shimano SLX, 11 speed


    30 lbs. 11.8 oz.

    Bike Weight

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



    Dropper Post


  • 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 416 442 454 468
    Stack 590 590 613 632
    Effective Top Tube 585 605 625 645
    Seat Tube Center-Top 375 410 445 480
    Standover Height 712 732 758 782
    Head Tube Length 100 100 125 145
    Head Tube Angle (degrees) 68 68 68 68
    Seat Tube Angle (degrees) 73 73 73 74
    Wheelbase 1115 1140 1162 1183
    Chainstay 435 435 435 435
    Fork Offset 46 46 46 46

    Sizing Notes

    Measurements are stated in millimeters 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.
  • Reviews
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