Hombre, do you plan on going the chain route eventually? I would have thought your RWHP / RWTQ would demand a chain drive by now. Is there a RWHP # when you would say to yourself, 'Yeah, I gotta get a chain'?
No, I have no interest in a chain conversion. The shaft drive is part of the "beauty" of the R3. I also don't plan on surpassing 300 RWHP... too many things start to break.
This is probably a good time to mention why I'm doing all this... I just happen to love the bike. Sure, I could spend less and ride a turbo Busa faster...not interested. In my case, I get to loving a particular machine, and I want to expore it's practical limits. IMO the Echo Cycle R3 was beyond those limits. My R3 is now quicker than my BMW K1200S... and I prefer riding it. She kinda makes me feel like Slim Pickens riding the nuke in "Dr. Strangelove".
chain drive.. hmmmmm like that idea jack.. like on the speed triple.. then mono shock with single sided swing arm seems plossible. neff if i remember correctly did a chain. have to go take a visit to that whipper snapper and see what was involved.