Park Tool Freewheel Remover: Shimano, Sachs Aris, Sunrace, DNP Epoch 12 splines Fits Sachs Aris, Sun Race, DNP Epoch, and other 5-10 speed freewheels Enlarged thruhole to accommodate 14mm axles 22.6mm diameter 1&quot; x 1&quot; x 1&quot;