Tire Selection for 987.2 Base Boxster - 2009 MY 17" Rims

[sudheendrar]

Originally Posted by thstone

^^^ What Jay said! ^^^

Thanks y'all. Going wide - what are the disadvantages?

Would these touch the fender inserts if turned lock to lock?

I suppose since the outside diameter may not change, it will not impact either bump stops or any suspension components? Also, any change in the speedometer reading?

My rims are standard 17" - 7 J X 17 H2 with 55 mm offset up front and 17" - 8.5 J X 17 H2 with 40 mm offset back rear.

Thoughts?

SR

[JayG]

Originally Posted by sudheendrar

Thanks y'all. Going wide - what are the disadvantages?

Would these touch the fender inserts if turned lock to lock?

I suppose since the outside diameter may not change, it will not impact either bump stops or any suspension components? Also, any change in the speedometer reading?

My rims are standard 17" - 7 J X 17 H2 with 55 mm offset up front and 17" - 8.5 J X 17 H2 with 40 mm offset back rear.

Thoughts?

SR

I run 225/45-17 and 255/40-17 without any problems
As far as speedo, well to my knowledge, all of our cars read a few MPH high anyway.
Most 225/45 and 255/40 are the same diameter 255/40 is the factory size so there shouldn't be any speedo change over factory