Re: does 19inch for F10 520 sacrifices too much ride comfort and drop power?
up to personal preference.
since 520 has not much power anyway, if u want looks, go at least to 19". f10 is huge car. u dont want puny wheels.
but if u want ride comfort and power rentention, dont change. stick to stock.
changing from 17" to 18" in my opinion is a waste of money.
because it will not make much of a difference visually....most importantly when u see the next f10 next to you with 20"....u will drool and secretly lust for it...
that said, I second what M-noobie said.
17" with stock rims and runflats is probably same weight as 19" rims w normal tyres and lighter rims.
take ur time and choose what u want.
btw, u do a search, this question was asked a trillion times.
happy modding. YNWA