Upgraded crimaz clutch basket/primary

[108]

Hi all!

New to small frames

But wanted to ask anyone know of how to change the primary gear over to a crimaz basket?

I can guess, but any guides that walk through it? I see the old river style. I imagine it’s a grinding job like a largeframe Vespa.

Any directions would be awesome!

Thanks!

I’d add a picture, but not sure how… lol