I would think you're OK with 265 for the R. I'm running for the R 19"x9.5" ET 38 with 275/30/19 Michelin PSS, which I've heard have a square shoulder.
Doesn't that mean my tires stick out 2mm's farther out?
This guy is running those rims. Don't know what tires he has. Ask him.
http://www.f30post.com/forums/showth...lufelgen+SF-71