i got a 50 tooth on my stingray, and with a light tailwind, ill pull 45. mabey even 50, but ya dont look down to much going that fast 35 avg no wind and i run a boygofast 80cc rollerbearing.
I have a 48cc starfire , with a 44 tooth, i dont have any problems on hills
I can idle up to one and acelerate up it.
only 140pnd though. heh
ive been 33 on a flat run,(against a 49cc scooter) i think thats pretty good for a 48, about 7500 rpm
I gave up at 33mph on a flat with no wind, but I like 25. Had a HT on an old Roadmaster Mtn Bike. Unfortunately it was destroyed this morning by someone not paying attention and flipping it end over end and landing gracelessly upside-down in a parking lot. That was not fun to watch. Engine seems okay, but the bike and everything else is totally trashed. Want to make a stingray, but I'm still working on design. I'm so sad I have no bike!
I have a GEBE tanaka 40cc with the 13 standard gear. I run 30 to 33 on flats and have hit 46.2 mph down hill. I got some crazy hills here where I live. If I had the 14 gear I think I could hit 50mph or more on some of these hills here.
Here is a video of mine http://vids.myspace.com/index.cfm?fuseaction=vids.individual&videoid=17370050
Good times ! Moondog175
My speed is largely affected by weather conditions. I've gotten the bike to surpass 50mph (with the wind behind my back and going down hill lol.) I average around 40mph+ on level roads. I actually recived a speeding ticket the other night for going 44 in a 35. Attatched is a scan of the ticket if you need proof