I REALLY wanted this bike seat, so I changed my handle bars and shifters to make it so. And SO glad I did. This fit perfect and now I can switch it out between my mountain bike and my commuter. And my husband can put it on his as well. So easy, and so much freakin fun. My three yo loves the MacRide and pretends to be on a space ship. Our first ride was 6 miles and he never once asked to stop!