Hello all it's been a while. I have a question about replacing the cam chain. I have a 2012 YZ450 with about 75 hrs on it and need to do some work replacing parts after a pretty good crash. My question is should I just look at replacing the chain now while the bikes is out of commission or should I wait? I've replaced the chain on previous bikes at about 100 or so hours and every time it wasn't even stretched. Has anyone had any issues with their chains by waiting until it was at 100 plus hours? It is regularly ridden and raced but at a Vet B level. Any replies would be greatly appreciated! Thanks!