SSR competitions are very light wheels. In 17.75, the same size as the bbs's, they weight actually 13 lbs which are about 4.5 lbs lighter each wheel. BIG difference especially when it comes to rotational inertia BUT it will not clear the brembos. you have to get 8.5 inch which is still 2 lbs lighter each wheel yet u have the benefit of a much wider wheel. the ssr comptetions coming out in 18.85 weighs 15.8 lbs which is truly amazing for a 18 inch wheel being 8.5 inches wide. SO i think SSR's are one of the best wheels manufactured and on my top 3 list of all time