I'll try and measure my ring tomorrow if I can find it.
Remember you will also have to redrill your towbar as they are four bolt fixing and have different spacing to standard. And no i havent got one for sale allthough if your local to Bristol i might have one you can borrow.
Right then your all wrong, the nato ring will not fit into a standard pin hitch .........
Thanks guys, i reckon that a disco wont tow a arrows trailer as its too high. ill be going with a sankey with some mods to my disco. didnt know these arrows trailers were so damn high.
thanks