Just got off the phone with Tirerack and found out that Kosi discontinued the K1 rim in 15x7 with 114.3mm x 5 spacing. Infact they have no wheels that will fit that don't weigh 18-20 lbs each or cost more than $300.
They have lots of 16" but we cant use them. They say no one buys 15" rims any...
I have the chance to pick up a Miata dirt cheap and was thinking about turning it into a Spec racer, but I'm a big guy. I would fit if I could gut the drivers door and put the door bars in there like my ITS car. Is this legal for Spec-Miata? Also do you have to buy a bolt in cage, or can you...