ssr competition 16 or 17?

I really want to get these rims because of the light weight. Though I'm really concerned with it bending as I have read doing research. Can anyone tell me more about this? Also, I am debating about whether I should go with 17s or 16s. I also do not want any tire rub what so ever. The wheel offset is +42. Should that cover me with 17s? I know that by going with 16s theres no worries. I like how 17s look, and with these wheels it won't slow me down. Any imput is appreciated thanks.