Iv'e long since upgraded to the GT drive then to the 180 drive. I always carry extra parts with me just in case and have no need for these parts any longer. So if you have an older mirage drive
NOT the GT drive these might be of use to you. Whether you use them as a replacement for worn sprockets or keep them as a spare....they will serve you well. Also included are the outhaul blocks for both sprockets. From what I understand these parts have been discontinued by Hobie so they are probably hard to find.
$20 EACH!