We believe the Opus Curve should be every kid’s first bike. Now available in five sizes (12” to 24″), these micro machines are built with durable steel tubing and shaped to our proven youth geometries. The all new Curve 20 and Curve 24 are equipped with front and rear V-brakes and a reliable 7-speed drivetrain. Nothing more you could ask for in these 2 new additions to our Learning Curve.