I've ridden my 1971 Honda CB100 now with bored out 1mm SL125 motor for 131cc to 60 mph. Back in the late '70s on its original 100 cc motor as a college student, used to haul my 1/2-A RC planes up the Pali Hwy from Honolulu to other side near Kailua / Kaneohi, fly at the public R/C park near the landfill. Helped me to keep my sanity.
Still have it, not long ago rode it to work 12 miles away, 55 mph wide open. People ask how the ride was, I told them it was like the scooter ride in
Dumb and Dumber.
https://www.youtube.com/watch?v=WFTZmECTVbs
