78 vs 79 KZ650SR gearing

Hey all,

I was playing around on gearing commander today to decide what new sprockets to order (decided for now to go to 17/41 instead of stock 16/41) and figured I might as well put in a request to add the SR model (650D) to the database as they only had the regular 650B model. The SR has a different stock primary drive ratio and smaller rear tire, but same transmission internals.... I think?

I used the info in the original owners manual for ratios and whatnot but wanted to check if that information is the same between the ‘78 D1 model and the ‘79 D2 model.

The pics below are from my ‘79 D2 model owners manual

Also, is there somewhere on the forum here to upload pics for the whole owners manual? I’m willing to scan the whole thing and upload it but I don’t know where.