Thanks for the advice I guess I keep thinking about my 1970 650 that I had a variety of rear sprockets up to a 60 toother for scattin' fast around the dirt/tires and heard I could change the rear on the Hincley rr sprocket down one 0r tooth from the stock 42 tooth and loose 500 RPM at the top
. I don't need low end any more. Why would I want to change the small gear while doing a mere tire change to Michelin Commander Tyres if I can just do the wheel sprocket if possible
