After a new flip front and the multitech seems nice. Fits better than the others I've tried (shuberth and BM). Are there any inherrent problems with them and how quiet are they?

and 'greasy biker' is someimes close to home
I went helmet buying yesterday and tried these on. Rather annoyingly the L was a perfect fit untill I dropped the chin guard which then touched my chin
absolutely love it. Its not silent but quieter than the BM System 5 i had. The BM lid seems ok but both vents literally fell off. THe Shoei seems better & for me is a better fit.

Oversize head.........surprise..... surprise