Diamondback Release 5C Carbon 27.5 Bike - 2018

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Ever been told you can't have it all? Nobody told that to the Diamondback Release 5C Carbon 27.5 bike. It levels the kind of drops and rock gardens that stymie bikes with even more suspension travel.

  • Features

    • Patent-pending design allows the Release to accelerate and climb with the kind of blazing efficiency you'd expect form a wispy, featherweight race rig
    • Modern geometry—long in the front, short in the rear, low in the bottom bracket—lends stability at high speeds without sacrificing agility on tight turns
    • Fox 36 Float fork with 150mm travel and Fox Performance Elite Float DPX2 rear shocks eat up bumps in the trail
    • Level Link design equals 130mm of efficient yet supple rear suspension
    • SRAM Eagle X01 12-speed drivetrain is durable and makes easy work of the steepest climbs with its ultra-wide gearing
    • SRAM Guide RS hydraulic disc brakes with 180mm rotors provide quick stopping power
    • Light and stiff carbon frame with Boost 148x12mm Maxle dropout
    • KS LEV Integra dropper post and Race Face Aeffect R cockpit components round out the stellar package
    • 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 Full-Suspension Mountain Bikes
  • Technical Specs

    Best Use

    Mountain Biking

    Mountain Bike Style


    Bike Frame Material



    Monocoque carbon

    Bike Suspension

    Full Suspension


    Fox 36 Performance Elite Float, 150mm travel, Fit4, 3-position dampener, rebound adjust, 1.5 in. tapered steerer, 110x15mm thru-axle

    Fork Travel

    150 millimeters

    Rear Shock

    Fox Performance Elite Float DPX2, 3-position lever w/ open mode adjust, LV EVOL, 200x57mm


    Truvativ Descendant carbon, w/ 34T Eagle chainring

    Bottom Bracket



    SRAM XO1 Eagle 12-speed X-Actuation trigger

    Rear Derailleur

    SRAM XO1 Eagle, 12-speed

    Rear Cogs

    SRAM XG1295 Eagle, 12-speed, 10-50T

    Number of Gears

    12 gear(s)

    Brake Type

    Hydraulic Disc Brake


    SRAM Guide RS hydraulic disc, w/ 180mm front/180mm rear centerline rotors

    Brake Levers

    SRAM Guide RS


    RaceFace Arc30, tubeless compatible, 32h

    Front Hub

    Novatec XD641, 32h alloy,110x15mm Boost thru-axle, sealed cartridge bearing

    Rear Hub

    Novatec XD642, 32h alloy, Boost 148x12mm thru-axle, 4 sealed cartridge bearing, w/ CNC disc mount, XD cassette body

    Wheel Size

    27.5 inches


    Maxxis Minion DHF 27.5 x 2.5 in. EXO, WT, TLR, folding/Maxxis Minion DHR 27.5 x 2.4 in. EXO, WT, TLR, folding

    Tire Width

    2.5/2.4 inches

    Handlebar Shape

    Flat Bar


    Race Face Aeffect R, 780mm wide, 20mm rise, 35mm bar bore


    Race Face Aeffect R 35, 40mm reach, 35mm bar bore

    Seat Post

    KS LEV Integra internal dropper, w/ SouthPaw remote, 31.6mm, SM/MD=125mm, LG/XL=150mm


    WTB Volt Race


    DB4L CNC Platform, sealed cartridge bearing w/ replaceable pins


    FSA No. 57 sealed cartridge


    SRAM XO1 Eagle, 12-speed

    Dropper Post



    32 pounds

    Bike Weight

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



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