I have stock S2000 fitment RE30s. I was wondering if a flat center cap would fit on the rear wheels (17x9+63) with the axle nut sticking out so far?

Thanks in advance.

 

you could call mackin to confirm. If they don't know, they could probably tell you how much clearance you'd need and measure yourself. The flat caps are not very thick at all and are slightly domed, so i'd guess you only need about 5mm of clearance, but that's an estimate.

Just make sure you order the right type of flat cap for the wheel--It's an O ring type. There's a thread about it for CE28's

https://www.s2ki.com/s2000/topic/760661-just-a-fyi/