This is my experience also. I won't mount one of my "good" C&V bikes to the trainer... I don't want to take chances with one of my babies. But I've got a Shogun 300 hooked up to a Blackburn trainer right this minute and it works just fine. Last winter it was an Azuki and the winter before, yet something else. The trainer, btw, tends to "eat" rear tire if you spin frequently, so I always buy a super cheapy tire just for the trainer each winter.