If you have or know anyone with some vernier calipers you can measure up for them yourself. You'll need to know: Outside Diameter of the Spigot Ring (the diameter of the hole in the alloy wheel where you will insert the Spigot Ring) Inside Diameter of the Spigot Ring (the diameter of the hub on which car you wish to use the Spigot Rings)
You can order these up from most alloy wheel places local or online.
Hope this helps.
Thanks, I have verniers, I also knew the measurements to take but know that you have to be bang on with the measurement... its pretty difficult with a circle to get it spot on to within 0.1mm...
Perhaps I'll just try it anyway