My buddies and I recently had a "spirited" discussion. The topic was this: Assuming the bikes were all in the same condition, how many years old could a bike be before the average B/C/vet class rider be on and still be just as competitive (without more effort and/or more skill)? We were talking about only 2strokes to keep it an apples to apples comparison. Believe me, when there's a foot of snow on the ground and you can't ride you find all kinds of things to argue about. I'd like to hear some opinions.-Thanks