FrizzleFried
Well-Known Member
My sons bike (66cc China Doll) w/44 tooth sprocket pegs at 6970 RPM. It won't go more...
Why?
Crappy exhaust? (It's a slightly upgraded BBR pipe...a real mini expansion chamber thing that's essentially a tick above stock... mostly in the sound department).
What would I get speed-wise with a 44t sprocket if I could some how manage to pull another thousand RPM out of it? I'm wondering if it's even worth trying for more... my "ballpark" math says I'd only get around 4-5 mph more out of her... probably not worth the effort.
Why?
Crappy exhaust? (It's a slightly upgraded BBR pipe...a real mini expansion chamber thing that's essentially a tick above stock... mostly in the sound department).
What would I get speed-wise with a 44t sprocket if I could some how manage to pull another thousand RPM out of it? I'm wondering if it's even worth trying for more... my "ballpark" math says I'd only get around 4-5 mph more out of her... probably not worth the effort.