I need to replace my sprockets and chain on my 07 zx6r. I am pulling my hair out trying to 1) find out what my stock gearing is. 2) find out why every site I go to has the parts listed as “2007 zx6 636-zx6rr” ? I am not sure if the sprockets are interchangeable with the older zx6r models and if they are that is why no one has updated their site. 3) The only one I can find is a Vortex “Power-Up” kit. This is -1 front and +2 rear. I am -1 front and stock rear now. I want to keep this set up. SO I am asking for 1) A web based 07 zx6r spec data base. 2) And a company that has a good price on the parts I need. I have tried Morepoweracing.com, Kneedraggers.com, DinnisKirk.com, and a few others. I think the biggest problem is that I do not know stock gearing and if the parts are interchangeable with older models.
Thanks for your help!!!!

 

16-43 is stock gearing for your bike

 

I don't know how up-to-date their site is but if you call they should be able to help, but they do have excellent prices.
http://www.sprocketcenter.com/

Curious,did you notice a difference with your current setup, when you went -1 in the front?