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    SIR 9 Frameset2021 Niner
    Recommended
    MSRP
    $1,260
    Where to Buy
    —
    $1

    At

    Category
    		Crosscountry
    Frame
    		Steel
    Wheels
    Wheel Size
    		29″
    		Mechanical Disc
    Drivetrain
    Brand Site

    ninerbikes.com

    Summary
    		The Niner SIR 9 Frameset is a 29″ steel frame crosscountry frameset with mechanical disc brakes.

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    Insights
    Geometry
    Specs
    SIR 9 Frameset2021 Niner
    Frame

    HAND WELDED REYNOLDS 853 STEEL; EXTERNAL CABLE ROUTING; INTEGRATED BOTTLE, BAG, RACK AND FENDER MOUNTS; 12X148 THRU AXLE

    BB Standard: PF30, 73mm, Press Fit

    Tire Clearance: 2.35"

    Color: Cement Grey / Black

    Fork

    120mm

    Shock

    n/a

    Bottom Bracket

    73mm PF30 BB Shell (Adapters Required For BSA Type BBs); compatible with Biocentric 30 BB

    Seatpost

    30.9mm

    Type: Rigid

    Groupset
    Brakes

    Post mount

    Type: Mechanical Disc

    Wheels
    Tires

    29x2.35 or 27.5x3.0 Tire (Tire Sizes Vary By Brand, Some Tires May Not Fit)

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