I just installed a new RK gold chain & 44 tooth sprocket! Boy that counter sprocket is a PITA! Took the time to clean out all the gunk out of the nooks and crannies while the chain was off. I had about 13K on the stock chain, but I'm pretty poor about maintenance on it. I had noticed a pretty good vibration over 4K in the last few hundred miles that I'm hoping was caused by chain wear. Gonna wait till the morning to take it for a ride. Just wanted to share the good news!