ACS Main Drive Single Speed Freewheel (16T x 1/8-Inch)
This post contains affiliate links. As an Amazon Associate I earn from qualifying purchases Basic OEM replacement freewheel for most low-torque applications. Fits regular hub threads (1.375″ – 24tpi), and standard 1/2″ x 1/8″ bicycle chains. Removable with ACS 4-prong or other universal removal tools. Chrome plated. Product Features Main Drive This post contains affiliate