Chain sprocket confusion

[flyingmachine]

About to place an order with Bike Bandit, then I noticed a discrepancy between the pitch of the rear sprockets recommended.

http://www.bikebandit.com/jt-rear-steel-sprocket?mg=3610&t=1&td=1
recommended by their parts picker (530/114)

should I pay more and get this?
http://www.bikebandit.com/sunstar-rear-steel-sprocket?mg=3610&t=1&td=1


http://www.bikebandit.com/jt-front-steel-sprocket
the front sprocket had a pitch of 520 in the order summary (doesn't have it's own page?)

http://www.bikebandit.com/parts-unlimited-520-sox-x-ring-chain
Was planning to get a 110

Does that shopping list seems right?  16/39/520x110  basically stock.   thanks,

[joshr08]

IIRC stock is 16/39 both are 520 and chain is a 520-110 dont let BB's parts picker tell you the gs500 in any year is a 530 pitch

[gsJack]

That's what I dislike the most about BikeBandit, they use their own part numbers for everything and you can't check against the mfg part numbers.  I like the way Dennis Kirk does it with complete info you can verify:

http://www.denniskirk.com/jsp/product_catalog/Product.jsp;jsessionid=OBTWDCZFY1HQ5LA0WTKSM4VMDK0NCIV0?store=&skuId=8109039S&mmy=

http://www.denniskirk.com/jsp/product_catalog/Product.jsp;jsessionid=OBTWDCZFY1HQ5LA0WTKSM4VMDK0NCIV0?store=&skuId=8099316&mmy=#fitment

Correct JT parts for 89-93 GS:

http://www.jtsprockets.com/52.0.html?&L=0&sel_uid=5176&p=

[flyingmachine]

thanks for the suggestion.  just placed my order w/ Dennis Kirk