BMW i8 Forum and Owner's discussion

I have seen 21 inch wheels and 245 /275 width on a i8.

However i really like the design and style of my Turbine wheels and would like to keep it stock. I know on my M1 I was able to bump up to from 195f to 225 r to 225 front 245 rear with no issues and better grip and lower aspect sidewall.

Is there such an upgrade for the stock i8 wheels?

There seems to be clearance for a slightly wider tire, but BMW cautions against it.

The i8 was built with that size of tire for performance - since it's an AWD vehicle, it doesn't have the traction issues of a typical rear wheel drive sports car, so doesn't have the same need for wider tires. Plus, the wider/larger the tire, the more it weighs, and can cause a slight decrease in performance (although would it even be noticeable?).

If you're doing it merely for looks, than go for it!

What size are your Turbine wheels? 19 inch or 20 inch?

Aftermarket rims will fit, just make sure to order factory recommended size. I've seen pictures of nice BMW i8 on some premium Vossen and ADV rims, but you have to keep in mind that even slightly bigger tires may decrees the range. You can check how to get new rims in this article: Custom Wheels 101