China Girl gear reduction?

[Larry Trotter]

Without me taking the side off and counting teeth, someone likely knows the built in reduction ratio of these engines.

 

[Mossy]

Just don't buy there junk... Bike berry is good for something

 

[Sidewinder Jerry]

Without me taking the side off and counting teeth, someone likely knows the built in reduction ratio of these engines.

4.1\1; (82:20)

Sidewinder Jerry speed formula:

(RPM × Wheel Diameter × π)÷(1056 × Total Reduction) = MPH

 

[Larry Trotter]

now I have to check. I was thinking it was more like 90 teeth on the big gear.