uxcell&reg; Bike Metal Scooter Sprocket Wheel 3 Speed Freewheel Replacement Product Name : Speed Wheel for Bicycle;Screw Inner Diameter : 34mm/ 1.3" Outside Diameter Max. : 92mm/ 3.6";Pitch (tooth to tooth) : 8mm/ 0.31" Tooth Width : 4mm/ 0.16";Overall Depth : 16mm/ 0.63" Tooth Quantity : 16,19,22;Material : Metal Weight : 224g;Package : 1 x Speed Sprocket Freewheel