Just got a set of rollers to train indoors with. This is my first experience with them, and so far so good. I was able to keep my balance within the first couple of tries. Once I finished my first five minutes on the rollers, I realized crumbs of the rubber from my new Continental Ultrasport tires had come off on the front roller. The front tire was also hot. The rear was a little warm.

I readjusted the position of the front roller to be closer to my front axle. Now my front wheel doesn't get hot, but it's still warm.

Is this normal for rollers?

Any advice?