CalgaryTSX 225/45R17's would definitely handle better than 215/50R17's since they are wider & lower profile (0.5" less in diameter) but 225's are really too wide for the TSX stock wheel 17x7. I went 225/50R17's which are just a little taller than the stock 215's, but on wider 17x7.5' wheels the diameter difference was insignificant.
22545-R17 tires are 3.03 inches (77 mm) smaller in diameter than 215/65-R17 tires and the speedometer difference is 10.9%.
Negative- Average aquaplaning resistance, average comfort levels. Overall - Very good - Continental win more tests than any other brand in Europe, and this was apparent with the excellent SportContact 5 even though it has now been replaced by the newer PremiumContact 6. View Full Test >>. 2017 Auto Bild UHP Tyre Test - 8th of 9 tyres.
TireSize Calculator - Tire & Wheel Plus Sizing. BETA. 215-45R17 tire size comparison with Size calculator. Use our tire calculator to compare tire sizes based on tire diameter, radius, sidewall height, circumference, revs
22545-R17 tires are 1.34 inches (34 mm) smaller in diameter than 215/55-R17 tires and the speedometer difference is 5.1%.Thefirst number 225 is the tire width in millimeters. The 2nd number 45 is used to calculate the sidewall height or "aspect ratio", by percentage. So, the sidewall height of a 225/45 R 18 tire is 60% of 225 = 192. The 3rd number 18 (generally preceded by an "R") is Rim Diameter in inches. This is the diameter of the rims bead seat base, not RkiV.