I launch my stock motor'd bike at 11K and I get 1.5-ish 60s out of it with the stock clutch. Pulled it apart after 30 or so runs and everything was fine. It does need adjustment after it reallllyyyyy gets warm.
I have the Brock's clutch mod ready to go on for next season, along with a pipe and a bazzaz zfi with qs.
I scanned this thread and it looks like I'm the only stretched bike here so my launch numbers are way off what everyone else is using. I have it lowered front and rear with a strap kit installed.
Yes it still wheelies at 10 inches back. Yes I ride it out. Looks better that way
If you follow my tail light, you will eventually get to the finish line!
Fully bolted, stretched, and tuned '11
"Jack the Ripper" quarter mile monster