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A dream machine on the trail, the flagship full-suspension Diamondback Release 3 27.5 bike blazes through climbs, rolling singletrack and rough terrain with the feel of a much bigger bike.

  • Features

    • Low-slung, semi-slack hydroformed aluminum frame with redesigned shorter rear and longer top tube creates a nimble ride that stays stable at speed
    • Level Link rear suspension with 130mm of travel and RockShox Pike fork with 150mm of travel let you glide over bumpy sections of trail
    • Topnotch components include SRAM X1 drivetrain, KS LEV Integra dropper post with Southpaw remote, SRAM Guide RS hydraulic brakes with 180mm rotors and wide Blanchard rims
    • 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 Diamondback Full-Suspension Mountain Bikes
  • Technical Specs

    Best Use

    Mountain Biking

    Mountain Bike Style


    Bike Frame Material




    Bike Suspension

    Full Suspension


    RockShox Pike RCT3 with 15mm thru-axle, 150mm travel

    Fork Travel

    150 millimeters

    Rear Shock

    RockShox Monarch Plus RC3 DebonAir


    Race Face Turbine, 30T

    Bottom Bracket

    Race Face outboard bearing


    SRAM X1 11-speed X-Actuation Trigger

    Rear Derailleur

    SRAM X1 X-Horizon, 11-speed

    Rear Cogs

    SRAM XG1150, 11-speed, 10-42t

    Number of Gears


    Brake Type

    Hydraulic Disc Brake


    SRAM Guide RS hydraulic disc

    Brake Levers

    SRAM Guide RS hydraulic


    Diamondback Blanchard 28R, tubeless-compatible, 32h

    Front Hub

    32h alloy,110x15mm Boost thru-axle, sealed cartridge bearing with CNC disc mount

    Rear Hub

    32h alloy, Boost 148x12mm thru-axle, sealed cartridge bearing with XD cassette body

    Wheel Size

    27.5 inches


    Schwalbe Hans Dampf, SnakeSkin, TL-Easy, folding, 27.5 x 2.35

    Tire Width

    2.35 inches

    Handlebar Shape

    Riser Bar


    DB35 alloy, 780mm wide, 15mm rise, 35mm bar bore


    DB35 alloy, 40mm reach, 35mm bar bore

    Seat Post

    KS LEV Integra dropper with SouthPaw Remote, 31.6mm


    WTB Volt Pro


    DB4L CNC platform, sealed cartridge bearing with replaceable pins


    FSA No-57E taper 1.5 /1-1/8 in. standard cups, sealed cartridge


    KMC X11EL, 11-speed

    Dropper Post




    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" - 6'4"
    Reach 406.3 428.5 450.7 473.3
    Stack 584.4 593.6 602.7 611.8
    Effective Top Tube 585 610 635 660
    Seat Tube Center-Top 394 432 483 533
    Standover Height 739 740 743 749
    Head Tube Length 100 110 120 130
    Head Tube Angle (degrees) 66 66 66 66
    Seat Tube Angle (degrees) 73 73 73 73
    Bottom Bracket Height 343 343 343 343
    Wheelbase 1133 1160 1186 1213
    Chainstay 425 425 425 425
    Fork Offset 44 44 44 44

    Sizing Notes

    Bike measurements are stated in millimeters.

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