Features 1、High Tensile: Steel plate is nickel chromium plated, multilayer electroplating and anti rust treatment, high accuracy gear ratio. 2、Deficient Tooth Design: Irregularly shaped teeth with cutting angles, smoother gear shifting and weight reduction, and strong compatibility. 3、Hollow Design: Can easily reduce weight, reduce the burden of riding, achieve good balance between strength and weight, make riding lighter and smoother. 4、10 Speed 32T Flywheel: Smooth rotation and no noise, to ensure close connection with the bicycle hub and stable operation. 5、Easy to Install: Directly replace the old or damaged flywheel, an excellent accessory for road bikes, without any adjustments to the transmission system. Item Type: 10 Speed Bicycle Flywheel Weight: Approx.436g/15.4oz Suitable: for Road Bikes Material: Nickel Chromium Steel Speed Ratio: 10 Speed 32T, 11T-13T-15T-17T-19T-21T-23T-25T-28T-32T Package List 1 x Bicycle Flywheel 2 x Gear Ring 1 x Flywheel Cover