Actually I got it from someone who had a spare from a Zipp 2001 bike which is no longer made. I got lucky. This fork went on a recumbent which was very twitchy. There is some potential for flop at sever turning. The fork was originally intended for a 74 degree headtube and matches fairly well w/o flop. That suprises me about a 15mm w/ 24" front wheel. What's the headtube angle?