aaand quick personal review
Bought these for track wheels. they're light, fit brembos and take 17 inch tires. (Way cheaper in the long run). I had tarmac3s before this and the difference in handling and even just acceleration is pretty amazing.
Car definitely feels lighter on its feet. feels way more responsive. Dont know what the conversion factor is but I felt as if I lost the weight of a light passenger.
Only thing i regret about getting these is I cant fit a wider tire. my car definitely feels like it needs more than the 225s I have. I could be wrong as I am a noob, but if my hunch is correct I will likely trade these for enkei RPF1s for track duty. those can be had new for a little more than used BBS.
car for sale. PM me!