(16T)Steel Single Speed Freewheel Flywheel Sprockets Parts SG5
1 x Bike Freewheel. 56mm / 2.2in(13T), 62mm / 2.4in(14T), 66mm / 2.6in(15T), 70mm / 2.7in(16T). The inner thread is finished with high precision, which ensure close connection with the bike hub and smooth operation.