Shimano pion 7v 14-28 emftz5007428SHIMANO Multiple Freewheel MF-TZ500 7-speed 14-16-18-20-22-24-28T BA0103A Freewheel 7 speed 14-28T Shimano freewheel 7-v bruin 14-16-18-20-22-24-28T28,99