The other thing is that you have to make sure that your skewer fits! Many skewers are not the plain rectangle shape that fits into the trainer. Hence, why they send you a skewer.(for fun, somewhere I posted a month or so ago about trying to ride the trainer with my normal skewer and falling over because it slid out). I learned my lesson the hard way! Make sure your skewer fits in correctly, it doesn't really matter if you change it out or not. I leave the trainer skewer on my road bike all the time. If your skewer fits the trainer, you are one step ahead of most!