IRUI Metal 3 Speed Sprocket Threaded Freewheel for Bicycle Bike

Description

Product Name: Bike Drive Sprocket Center Thread Diameter: 34mm / 1.3" Outside Diameter:     Small: 67.5mm / 2.7"     Medium: 76mm / 3.0"     Large: 89mm / 3.5" Tooth Quantity:     Small: 16     Medium: 19     Large: 22 Total Height: 17mm / 0.7" Pitch (tooth to tooth): 9mm / 0.4" Material: Metal Net Weight: 222g Package Includes: 1 x Bike Drive Sprocket