Stock sprocket sizes - '75 Z1B 900

Can someone please let me know the stock sprocket sizes for this year/model? I can't find it in my Clymer manual and have searched around and can't find the info online. I want to say it's 15/35, but need to know for sure. I thought Z1 Enterprises had a reference link on their site, but can't find that either. If anyone has a link to a reference page that would also be helpful to be able to bookmark.

Thanks!

15/ 35 is correct.

74.125.47.132/search?q=cache:s-bx7-i9cAY...=clnk&gl=us&ie=UTF-8 great info here

Thank you kindly!