I was talking to a guy at work, he knows a fair bit about bikes - rides a lot of XC. He'd never heard of trials before (he's oooooold, compared to most of us.... late 40's), but when I told him about it, he'd seen some clips. He raised an interesting point - one that I'd never thought about before. He said: "When you do that hop to the side, and especially the ones where you keep it at quite a vertical angle on just the back wheel - how do your feet not come off the pedals?" This got me thinking... How the hell DO we not come off the pedals? Is it purely the hold on the bars, and pulling it up with us? Surely that'd only work on quite steep angled hops... What about low down ones, where you don't raise the front wheel too much? A combo of friction between pedals and feet, pulling on the bars, and just general momentum? I'm sure one of the physicists on here is about to make me feel very silly indeed, but I'd rather feel silly and know the answer, than not Any ideas?