Okay, to be precise, by "being on a bike tour" I mean "chillin' in the van watching the astonishing landscape sprint by while a pack of crazy Aussies and Americans actually ride these ginormous mountains", but I was being there all the same, and since I was asked to and I promised I would I ask: so why do *you* ride? Companionship? Fitness? Personal challenge? The perfect communion of person and machine? Slightly disconcerting sheer love of the pain cave? Me, I ride to go get truly superlative ice cream. So...what's your excuse?