Is there a Zocchi that fits straight on a C1

Is there a Zocchi clutch that does not have big nuts on the back of the backing plate ?

One that will fit straight on a C1 ?

Also a drum with a bit of clearance at the back of the sprocket for the end of the crank ?

Has anyone had trouble getting them to stay tight ? Mine came loose on the crank twice and now it's floged the end of the crank and broken big chunks out.

Any suggestions ?

It's very simply to modify the Zocchi clutch to fit a Blata or C1. Remove the "big" nuts, grind down the posts as needed and use thinner nuts with threadlock. Use of a washer to space the clutch out further may be necessary as well.

The newer Zocchi clutches no longer have the nuts on the backside of the backing plate and fit on with no problems. I also believe that the drums will also work.

Kewl , thanks guys.