Originally Posted by see_fu
No point in adding spacers unless youre trying to clear brake calipers or you have rubbign issues when u turn teh wheel. It's a balance though. If your rubbing the inner wheel well, adding spacers will prevent that but now you might rub the fenders.
Ditto, just getting rims does not mean you need to get spacers. Generally they are needed to clear brake rotors. Also for spacers, anything more than 5mm is generally not recommended. Any more than that, and you dont have enough lug for the lugnuts to grab on to. Dont get the rims if they require more than a 5mm spacer.