FSA Onepointfive Headtube Reducers Tapered headtubes are a wonderful thing that provides a better ride quality, however, sometimes you have a straight steerer tube on your fork and need to reduce the bottom headtube size from 1. 5" to 1-1/8". This kit from FSA reduces the internal diameter of your 1. 5" headtube to 1-1/8" so that a traditional 1-1/8" fork and headset can be installed. This piece converts EC49 to an EC34. Features Converts 1. 5" headtubes down to 1-1/8" in diameter Designed for straight steer tubes to be used in tapered headtubes | Fsa | Onepointfive Headtube Reducers Blk