Gearing Commander online toolkit

Given all the discussion in recent months about strategies for altering gearing, I thought there would be interest in this site, which I've not used myself but comes recommended in another forum I frequent.

Gearing Commander

If anyone is playing with their sprockets, this tool should give you some precise data about what to expect with various reconfigurations.

I've just gone through a bit, and see they have tons of bikes already pre-configured. Alas, no Chinese bikes. Perhaps we can start submitting stock configurations for our various Chinese rides, and get them into the database.

Do any of our JH600 owners actually KNOW what our five gear ratios are? I've not been able to find this data in the Jialing site, in Chinese or English. And it's not obvious from the parts catalogue. Pfaelzer? Franki? Anyone?

If you try it and have some comment, for better or worse, please report back into this thread!

cheers