No kidding, leave the 550 as-is. Nothing wrong with a clean stock-ish bike.quote:
For what its worth, I agree with your initial idea of leaving the 550 alone while giving the 750 the "treatment."
The 550 looks super clean and there's nothing wrong with a classic "stocker." Keep that one for giving the ladies a ride home from the bar.
750's already on its way. That front tire would scare the shit outta me though...
Finish your 750 as the "racer".