Yes, you can use a 225-45-18 tires instead of 225-50-18 tires.
Yes, this is a decent swap. If your OEM size was 235/50-18 and you substitute 225/55-18 your speedometer will read 58.9 at a true 60 mph.
Yes, this is a decent swap. If your OEM size was 235/50-18 and you substitute 225/55-18 your speedometer will read 58.9 at a true 60 mph.
There are a number of options when you want to buy 225 45 18 tires. One can check his local tire shop for these specific tires, or a local car shop. Alternatively, there are a number of tire manufacturers, such as Pirelli and GoodYear, that sell these tires on their webshop.
That's pretty close. The 235/60-18 has a diameter of 29.1" (739.2mm) and the 225/65-18 has a diameter of 29.52" (749.7mm) and a true 60.85mph on a speedometer reading of 60
Yes they can but the 235 will be 0.44 inches smaller in overall diameter. This will cause your speedometer to read 1 mph fast. This is however an acceptable substitute.
For the 17" hub, it's 225/65/R17. Not sure about the 16" or 18" hubs.
Driving in the snow on 225/50/R18 is worse than on 195/60/R17, if the same tires are used.. the tire width is what matters in snow!
18 is what percent of 225:= 18 / 225= 0.08Converting decimal to a percentage:0.08 * 100 = 8%
205/55/16 is the original tires 225/40/18 for racing edition and Z-edition
8% of 18= 8% * 18= 0.08 * 18= 1.44
0.08 x 225 = 18
225 multiplied by 0.08 = 18