18 tooth freewheel clearance

Product Name: 18 tooth freewheel clearance
Hycline Single Speed Bike Freewheel: 14T/16T/18T/20T Compatible with 1/2''×1/8'' Bicycle Freewheel - Threaded Type Freehub... clearance, ZUKKA Single-Speed Bike Freewheel 16t/18t/20t Bicycle Freewheel Compatible 1/2 x 1/8 One-Speed Cycling Replacement Accessory clearance, Origin8 Hornet 108 1/8" Performance Freewheel clearance, Hycline Single Speed Bike Freewheel: 14T/16T/18T/20T Compatible with 1/2''×1/8'' Bicycle Freewheel - Threaded Type Freehub... clearance, SHIMANO Single-Speed Freewheels clearance.