How to: Install a 520 Conversion Chain and Sprocket set
I can't post this in the how-to section but check it out- may be helpful
It's a PDF file you will need Adobe Reader to open it.
There are some other minor things on the ZX10R that need to change- like the torque specs on the countershaft nut and the gearing. For example, if you have a front and a rear on the 10R that use a number divisible by 3 (such as 15/45 or 16/48 etc) and the chain is an even # of links AWAY from stock length (say 112, 116, 120 etc of links) you will find that the master link will hit the rear sprocket on exactly the same spot every revolution and it will cause premature wear--> and fast. It's more problematic because of the very small rear sprocket and longer swingarm on the rear of the ZX10R.
Other than that, the information provided is pretty good for ZX bikes.