Changed Final Drive Gearing 2013

[rboe]

Yup. Physics is pretty much just measurements; no room for opinions. Advance a hypothesis based on facts (more the merrier); adjust the hypothesis until it fits the facts then you have a theory. Keep testing the theory until the facts don't back it up.

Lower gearing will let a motor spin up faster since you have given it better mechanical advantage for the given load, than a taller gearing. Which means at the top rpm you'll have to shift sooner. Unless you have geared it so low (think 4 wheel drive low) your speed advantage is nought (and don't think this is the case with the CB but if your times hold up, it could be).