If you don't mind spending just a little more money, do youself a favor and also take a look at the Russell Daylong at Russell Cycle Products. The seat will be made to fit and there will be no guessing about how the seat will fit feel after a 1000 mile day. They are in Shasta Lake, CA and have a web site. I've had three and swear by them. I also have another seat I use for around town when I have the tour pak off.