not sure about the bolt pattern...I am pretty sure they inter-change. I know the riser blocks are the same and I have different sizes if you are thinking of buying one. Actually have two different sizes new in bag....
Sorry I never clarified my last reply correctly....not all inter-change but on some models Cat and Yamaha are the same...don't know about the others but DooRyder is right in suggesting a pivot bar....then you can run what yuou want. Make sure you buy it for the right machine that way your cap for your bars should still work