Hello, Got myself a nice little set of 15" dezent alloys to refurb and get o my mk2 by the spring, i know i need to get the wobbly bolts and can get them from my local motorworld for 35 quid which is fair, but i notice there loads of spigot rings on ebay for couple quid and will save myself a good 10a if i can know the right ones to get... i measured what i presume to be the right bit of back of the alloy like centre and thats 56mm? so is that the size rings i need? thanks for anyhelp