I was in a local shop today and the owner was looking at my bike and noticed that I have a street compound Dunlop D207 in the rear and a GP D207 in the front. He said I should switch to the GP rear (which he conveniently had in stock) and I also mentioned that I had a 190/50/17 in the rear and he said that that size was unsafe. Is this true should I buy the the 180/55 that he has? I have only about 2000 miles on the tire but it seems to be getting a little slippery, I saw a post from someone asking if anyone else noticed this ( I think it was chris_y2k_R1) if anyone gots any ideas lemme know. Thanks.
------------------
------------------