I brought tome wheels of a lad on this sit and he said he didnt use them,but i think it need them....any one know what the size is on the hum...are they a need???

i tryed it with out and when driving the osf is making a strange hum sound,any ideas what it could be?

I have spigot rings on my 17" alloys.

The centre bore size on the Coupe is 58.1mm. Most aftermarket alloys have a larger centre bore, so you use a spigot ring to make up the difference.

What is the centre bore size of your new alloys? I have a couple of sets of spigot rings I could sell you if they are the right size.

usuing alloys without spigot rings is quite dangerous, more so if you are using wobbly bolts!

without them the weight of the car is on the bolts rather than the hub.