Anybody know what the offset and weight is on 17x7 exel maj wheels ?

I'm also cosidering kosei k1 17x7.5
What is the ideal tire size for an mcs not lowered with the 17x7.5" rims?
My car is blk with wht top & mirrors but I don't want wht wheels, do you think blk wheels would look better than slv?

Thank you.