I have 20's on my 07 and it has eibach lowering springs, with low profile tires. No rubbing or fender roll.

 

Did putting 20" wheels on make the speedo off? And if so can it be is ther a fix?

 

Same question asked here........

https://www.chevyhhr.net/forums/lounge-10/speedo-question-11719/

Weather you plus size or decrease the size of the rim, as long as the outside diameter remains the same as stock you will not have to recalibrate the speedometer.

Here's an article for more reading and info on plus sizing.

http://www.automedia.com/Plus-Sizing...cr20020601ps/1

 

Hey sorry to interupt the thread but do any of you with 20s have a 35 mm offset or know if that will rub? Im lowered on eibachs. thanks