2007 Mercedes-benz Clk63 Tire Sizes

Select a box to get your vehicle's tire size.

2007 Mercedes-Benz CLK63 AMG Cabriolet

Front Tire Size (Show Details)
225/40ZR18/ 92Y
225
This number indicates that your tire has a width of 225 millimeters.
40
This number indicates that your tire has an aspect ratio of 40%.  This means that your tire's sidewall height (from the edge of the rim to the tire's tread) is 40% of the width.
R
This letter indicates how your tire was constructed.  Radial is the standard construction method for about 98% of all tires sold today.
  • R = Radial
  • B = Bias Belt
  • D = Diagonal
18
The tire size was designed to fit rims that are 18 inches in diameter.
92
This tire has a load index of 92, which means it's capable of carrying a load of 1389 pounds (630 kg) or less. A higher number means the tire can carry more weight.  A lower number means the opposite.
Y
This tire has a speed rating of Y, which means 186 mph (300 km/h) is the maximum speed that can be sustained for 10 minutes.  A higher speed becomes dangerous.
Z
This tire has a speed class of Z, which means it's part of an elite speed class of 149 mph or more (over 240 km/h). The tire's speed class is less specific than the speed rating.

Rear Tire Size (Show Details)
255/35ZR18/ 94Y
255
This number indicates that your tire has a width of 255 millimeters.
35
This number indicates that your tire has an aspect ratio of 35%.  This means that your tire's sidewall height (from the edge of the rim to the tire's tread) is 35% of the width.
R
This letter indicates how your tire was constructed.  Radial is the standard construction method for about 98% of all tires sold today.
  • R = Radial
  • B = Bias Belt
  • D = Diagonal
18
The tire size was designed to fit rims that are 18 inches in diameter.
94
This tire has a load index of 94, which means it's capable of carrying a load of 1477 pounds (670 kg) or less. A higher number means the tire can carry more weight.  A lower number means the opposite.
Y
This tire has a speed rating of Y, which means 186 mph (300 km/h) is the maximum speed that can be sustained for 10 minutes.  A higher speed becomes dangerous.
Z
This tire has a speed class of Z, which means it's part of an elite speed class of 149 mph or more (over 240 km/h). The tire's speed class is less specific than the speed rating.