Proper chain size?

[CdnMedic]

Just about to order a new chain and sprocket set.
Will be getting an RK chain, what size do I need... is it a 530?
How many links approx??

 

[Cali rider]

I bought an R-K 530XSOZ1 (Part #1223-0117, 118 links) chain, rivet link and Sunstar steel front/rear sprockets for ~$162 back in October 08. 20000 miles later, no problems at all.

 

[CdnMedic]

Thanks, I ordered that exact same chain with stock geared supersprockets that are gold anodized. Should look good!