Originally Posted by carleton

Many (most) mag trainers will accept track nuts. Every mag trainer that I've owned or used has. I've owned 3 different models of mag trainers and used half a dozen others. They all took the track nuts.

You mention feel. Rollers give great feel, but you give up a lot of feel when you bolt on a fork stand.

If you want great feel, use normal rollers with large barrels. If you want great feel with more resistance, use normal rollers with narrow barrels or lower your tire pressure. If you want narrow for travel as well, consider Kreitler Hot Dog rollers. They are more narrow than standard Kreitler rollers:




Or you can special order these from Kreitler:

(this is my old bike and rollers)



Very small, light, and traveled well...but required too much concentration to stay up. Possible, but difficult to relax on them.