dont meen to sound dim hear but what exactly are "Spigot Locating Ring" and how do i know if i have/ need them on on my wheels ( just put a set of 16" porshe wheels on with a converter ):confused:

Depends on what size the centre bore of the convertor is (you need 57.1mm)

will go and chec if it ever stops raining here cheers

Think iv sorted it thanks for the info. dont think i need them looking at it