I'm happy with my 17's, but my tyres (Kumho) are soft, so probably a good thing in combination.
The stock Conti's have fair traction, pretty good wear, but can be rough and don't take a lot to destroy.
Don't like your chances of bigger brakes and stock sized rims (but of course there are rims and there are rims).
Do you still have the stock rims?
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