Ken, it looks like you got pretty good advice from the guy. The Kumho appears to have a pretty good
performance/price ratio . I assume the Solus was the one he was referring to(except it's 195, not 190, of course). The wider tread and narrower sidewall tend to offset, but the 195/60 is about 24.2" in diameter and the 185/65 about 24.4". The difference in diameter isn't very significant and if at 60 on the speedo now you're actually doing 59(typical), you'd be doing about 58.5 on 195/60.
Generally(other factors remaining equal)the wider tire will handle a bit better and ride a little stiffer. This is practically no change at all from OE; there's a lot more radical stuff done I see on the Miata forum. Get the 195/60 Kumho Solus.
