Hi folks may sound a daft question,but i bought a set of 16" oz superleggeras of my mate who had them on a honda civic w reg,now ive put them on my 172 ive had to take his spiggot rings out as they was too small to get the wheels over the hub,so by a rough guess does anyone maybe know what size spiggot rings i would need to put back on the wheels now? as theres prob about a 3 to 5mm gap around the hub with the wheels bolted on at the minute,any info would be good thanks i had a look on e-bay but theres all sorts of sizes.