Interesting that the only difference between these two Shimano TIAGRA freehubs FH-4500 and FH-4600 is an additional length quick release skewer on the FH-4600. https://si.shimano.com/pdfs/ev/EV-FH-4500-2582A.pdfhttps://si.shimano.com/pdfs/ev/EV-FH-4600-3149.pdfThis is encouraging since I have a FH-4500 on order. 👍#cycling