To find which sticks are closer to the Jojo's, you will need basic math skills, it has nothing to do with units.

If you want comparison lengths (like how adding 1 cm is not the exact same as adding 1 inch) find a ruler with both units on it.

ProMark has a filter to search models:

http://promark.com/pmProductDrumset.Page?ActiveID=3956
I found two sticks that fit your requirements.