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    MSRP
    Where to Buy
    $1

    At

    Category
    BMX
    Weight
    21.9 lbs
    Frame
    Aluminum
    Steel
    Wheels
    Aluminum
    Wheel Size
    20″
    Promax Rim
    Drivetrain
    Brand Site

    radiobikes.com

    Summary
    The RADIO COBALT PRO is a 20″ aluminum frame bmx bike with promax rim brakes.

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    Insights
    Geometry
    Specs
    Frame

    6061 T6 alloy, forged dropouts with int. chain tensioner

    BB StandardBSA, Threaded

    ColorsBlack; Metallic Green

    Fork

    cr-mo, 1-1/8″ butted steerer tube, cr-mo fork legs, 30mm offset

    Bottom Bracket

    Radio, BSA square taper, sealed

    Headset

    FSA, No.28, integrated headset, sealed, 1-1/8″

    Stem

    Radio, Cobalt-toploader, ext. 50mm, alloy

    Handlebar

    4130 seamless cr-mo

    Saddle

    Radio Cobalt Pro, combo seat

    Seatpost

    Radio 25.4mm alloy

    TypeRigid

    Pedals

    Radio, Cobalt Pro, alloy

    Grips

    Radio, diamond knurling, closed end, flangeless, 130mm length

    Groupset
    Crank

    RADIO “Cobalt” forged alloy 3pc crank, 175mm long

    Cassette

    RADIO alloy, 44t sprocket

    Chain

    KMC, Z6, 1/2″ x 3/32″

    Brakes

    PROMAX “TX-117” alloy brake rear

    TypePromax Rim

    Brake Levers

    PROMAX “XL-378” alloy brake rear

    Wheels
    Rims

    Radio, BX-32, double wall, 36H, alloy f&r

    Front Hub

    Radio, Cobalt, alloy cnc, fully sealed, 36h, 3/8″ cr-mo axle

    Rear Hub

    Radio, Cobalt, alloy cnc, fully sealed, 36h, flip flop, 3/8″ cr-mo axle

    Tires

    Arisun, XLR8, front 20″x1.95″ / rear 20″x1.75″

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