Can you not try before you buy? If so, buy the one that fits.
I'm a bit cut off from decent bike shops. I have seen he Spiuk (for around £160 FFS), so I can try that one (then buy online).
But spotted the MET on the same site for the bargin price.
The casco came up because it ws on a german site I use for tyres (cheap schwalbe).
The catlike is just weird looking but gets great reviews for a lid in my price range.
I'm a bit cut off from decent bike shops. I have seen he Spiuk (for around £160 FFS), so I can try that one (then buy online).
But spotted the MET on the same site for the bargin price.
The casco came up because it ws on a german site I use for tyres (cheap schwalbe).
The catlike is just weird looking but gets great reviews for a lid in my price range.
I'll try the Spiuk and go from there.