CURVE 12

    The first bike every kid should ride - The Opus Curve. The Curve comes in three sizes, 16", 14", and 12". These little machines are built using our proven youth geometries with durable steel tubing. All of the bikes come equipped with a rear coaster brake and our signature Opus stem pad. When it comes to youth bikes, it's all about the learning Curve.

    • Proven 12-inch geometry
    • Opus Meta 10 steel frame and fork
    • Single-speed drivetrain
    • Equipped with a rear coaster brake
    • Stem pad and youth saddle

     Specifications are subject to change without notice.

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    Frame Meta 10 steel
    Fork Meta 10 steel
    Weight (lb) 16
    Sizes 12"
    Color(s) Acid Green
    Shifters N/A
    Front Derailleur N/A
    Rear Derailleur N/A
    Brakes Rear coaster brake
    Brake Levers N/A
    Crank YL 1 piece
    Chainrings 28
    Bottom Bracket 9 Pc steel
    Cassette 18
    Chain Keensi C410
    Headset Neco anti-spin
    Handlebar Opus Junior 35 mm rise
    Stem Opus Junior
    Grips/Tape Opus Kraton
    Saddle Opus Junior
    Seatpost Opus Junior
    Wheels/Rims Ace aluminum
    Hubs KT
    Tires Innova HV-5104 12 x 2.125
    Pedals Resin flat
    Other Adjustable / Removable training wheels
    Other Chainguard / Stem protector


    Geometry diagram
    Riders's height  
    ± cm 42
    ± " 3-4 yrs/ans
    Size (cm)  
    S - Seat tube (effective center-center in mm) 152
    TT - top tube (effective center-center in mm) 311
    HT - Head tube (mm) 70
    HA - Head angle (mm) 70
    SA - Seat angle (mm) 70
    CS - Chain stay (mm) 228
    D - BB drop (mm) -25
    ST - Stack (mm) 240
    RE - Reach (mm) 225
    SO - Stand over (mm) 370
    Handlebar width (mm) 470
    Stem length (mm) 40
    Crank length (mm) 85
    Geometry diagram
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