It seems to me that it should work, but I was interested in what folks had to say about it.
My "A" bike has a 9-speed Ultegra drivetrain, my "B" bike has a 8-speed RSX drivetrain. They both have triples on the front. I want to bring the "B" wheels as backups for a race on Saturday.
I guess I could try to pick up a used 9-speed cassette, but wondered if I could just slap them on the bike in a pinch.
What do you think?