I was reading another thread about tire replacement for a Spyder. What tire sizes are common for a ST Limited 2014? My rear tire size is 225/50 R15. I have heard / read to go to a 225/ 60 r15 if I want to correct speedometer reading. Can I go with that size tire? Has anyone done that size? If I go with a 215/ 6 r 15 I have more choices but I still need to know if that size would work. Any help or past experience would be great.