GPO freewheel 16 - 22 teeth
Manufacturer: GPO · Material: Steel · Surface: galvanized (blue) · Number of teeth: 16 pcs · Number of teeth: 18 pcs · Number of teeth: 20 pcs · Number of teeth: 22 pcs · Chain pitch: 1/2" x 1/8" · Thread type: FG34.8 (1.37" 24G) · Thickness: 15.5 mm