Is the centerbore on them 73mm? I couldn't find anything on their website or on here about it, but found 73mm on google.

 

If they are the same as the rota wheels which i think they should be they should be 74.1 or something like that, but i could be mistaken

 

the center bore is 73, i recommend getting hubcentric rings, hwen i had teh dr20 i had some shaking in the front and when i put on the rings it went away, also i needed a small spacer in the front because teh rim was hitting the caliper, only like a 3mm spacer. they looked hot but i sold the to put money towards my project civic, i'm looking to get the sportmax 501's soon for winter use.