Quote:Since the German kit is a 17 and a 50 and works out to almost the same ratio as the Stock belt drive, I figured I would go with a 17 and a 45-47. I don't want to turn it in to a complete dog on take off and acceleration. Even a 500-800rpm drop at 80mph would make me feel better.
How well does your bike accelerate now in 2nd gear? No matter what you do, it won't be worse than that...
17/47 would be a pretty small change, you'd get that much from a rear tire change if you stuff a 150-90-15 back there, not even a 10% change. Most of the "overdrive" kits found on scootworks.com feature a final ratio between 2.2:1 and 2.56:1. That seems to be the sweet spot for most v-twin cruisers looking for a "highway gear."
But....that's just my 2 cents and probably not worth as much
Keep us posted how the project goes.