I would think the percentage of Sportbike riders that have been over 150 is considerable. Up in the 70-75% range IMO. The only reason I would say so is because everyone who owns a sportbike has, at some point or another, had a wild hair up their ass and said, "I wonder how fast I can go before I get freaked out." I know I've been there a few times in a few different vehicles. My old 750, limiter in 6th. My buddies 1k, limiter in 6th. My 03 Cobra, buried the tach. And the latest, my 05 Busa, personally only had it to 165 on the tach. Don't really feel the need to see if I can hit the limiter in 6th on this one, LOL!!!