Noted, stuff for Cross is for 42 or 44 t chainrings..

Sclumpf makes some big aluminum chainguards for their cranksets,
I have a 130 thats a bit bigger than the 54t chainring

there are smaller made .. http://www.cyclemonkey.com/ might be a US dealer to contact, to order them

Other bolt circle supported is 110..

Long time ago I got a Machined aluminum guard for a 50t chainring its on my touring bike ..

proved useful when I had to drag the whole rig down stairs and back up another set
to get to the platform from where my train was to depart.


and no overshift past the big ring was possible.