Early morning, just woke up. Reading the post about the California trip. Kinda reminded me I'm planning a Colorado trip this summer for me and the wife. That's about a thousand miles and there are some 75mph speed limits out west. I sorta pondered changing sprocket ratio for my wife's bike. The bike wouldn't be very loaded. Lower the RPM.. I looked at a parts fiche. There are no sprockets available. Shaft drive. Life's hard when you're stupid.