So I forgot to tighten the chain yesterday and 3/4 through the ride I shredded the teeth completely off the counter sprocket!:yikes: I think it is time for a new chain and sprocket set on my '06 YZ450. I think the stock 13/49 gearing has been working out well for me, so I guess I'll leave it at that because I still like having a decent top speed with all the tight single track I do. I'll get the Ironman rear sprocket and whatever front sprocket. Any suggestions? Also, what length chain should I get? I want rear wheel to sit as far up as possible to get better low speed handling. Oh, and I will get the ORN6 Regina chain.