How about an outstanding value? Now you can replace your Razor Mx350 Rear Brake, Razor Pocket Mod brakes and Meridians rear brake and many other trikes, scooters and bicycles needing rear band brake assemblies Specifications; Black finished steel body Riveted band 80 mm inner diameter 3-1/8"" outside rotor diameter Most bicycles these days eschew band brakes for either caliper brakes, disc brakes, or coaster brakes. Nonetheless, many 3-wheel trikes like the Schwinn Meridian series still use this tried & true system as band brakes are still the best method around when it comes to applying the brake to a small 2-wheel axle barrel. Unlike the larger drum brakes used on automobiles, this trike rear brake kit provides braking friction by using a spring-like metal band that clamps down on the spinning rotor."