"It wasn't easy to come up with spells that would make a wooden wheel work the way Kyle described for the typical kind. This rubber." Istredd has nothing to compare that to, but considering the bikes work well and everyone else is comfortable on them, he must have made it well enough. So the shaky aspect is probably something else. Kyle has been doing physical upkeep but they are still all learning.

"No, I was just going to make my post-class notes." Istredd keeps extensive notes on everything he does. It is important for him to know the progress of his students and he does that best when there is a list involved. Not that he ever forgets, but for posterity.

"It could be I'm very bad at it, but something does feel loose." It has been used frequently lately as more people are checking it out or using them.