WHITE Industries ENO Freewheel 16 t – sealed bearing free wheel

16T gears do not have enough room at the base for 1/8″ chains to sit all the way down on the teeth. Works with hubs that have a 1.375” x 24TPI thread. Silver, Black, Blue, Gold, Pink, Purple, Red. On double freewheels inside teeth are 6.1mm from the inner base of the threads and the outside teeth are 11.8mm from the base.