I recently changed my front tyres for mitchelin primacy 205/55 r 216, I'd joined Costco and went there, they told me that they had to fit the new tyres to the rear as it was the law, found this strange because I'd not heard of this but could see the reason behind it, so they rotated them, also if you have a costco near you its worth checking the prices they charge as it includes valves, balancing and fitting, it cost me £72 a tyre for the mitchelins which is about £50 saving on ats kwik fit prices for a good tyre.:biglaugh: