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Discussion Starter · #1 ·
hey guys, got a few tire questions to share.

Stock E46 M3 is using 225/40/19F, 255/35/19R.
But I have seen so many of you here running 245/35/19F, 275/30/19R, whats the advantage of it? under/ oversteering? better cornering?

Currently i am running 235/35/19F, 265/30/19R, and noticed that my speedometer is showing 8-10% faster than the actual speed, will 245F 275R have the same affection?
 

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Your speedo should not be 8-10% faster with those tires. I'm showing that it would only be about 2.8% of a difference in the rear. Running a 245 and 275 will add a bit more rubber, and also be closer to your OEM specs. With that combo you're looking at a difference in your speedo by 1.88%, versus 2.8%.
 
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