Click Photo to order!Use with Manic Mechanic Sprocket Adapter.For freewheel / multi-speed hubs 1.258" or smaller.Custom machined to match exact diameter of (your selection!)Measure your hub accurately with a Caliper or Micrometer and select the proper outside diameter of your hub in the drop-down menu. The reducer is made with a locking shoulder on both ends to prevent any slippage.This reducer allows the use of Manic Mechanic's coaster-brake sprocket adapter on multi-speed hubs, that have a hub O.D. 1.258" or smallerSimply insert the 2 piece reducer bushing onto the each half of the adapter before assembly onto the hub.Select the O.D. of your hub when ordering.Note* This is not a returnable item, so measure your hub accurately with a Caliper or Micrometer and select the proper outside diameter of your hub in the drop-down menu when ordering.