When our vehicles need to replace tires, in most cases they replace tires of the same specifications, but I don't know if everyone has ever thought about whether it is feasible if we replace tires of other specifications without replacing the wheels?The answer is yes, as long as you refer to the wheel tire comparison table to select the tires that can be installed.
Because the use of tires of other specifications without replacing the wheels involves the concept of the J value of the wheels, let's first understand the J value of the wheels.
The width of the rim of the wheel hub is the J value of the wheel hub, in feet.
For example, the J value of the rim corresponds to the tire width of the tire.The J value of each rim corresponds to a standard tire width, but in addition, it can also install tires with larger and smaller tire widths.We can choose the selection criteria against the picture above.
Rim width(J)
Recommended size（mm）
Applicable minimum size（mm）
Applicable maximum size（mm）
5.5J
185
175
195
6.0J
195
185
205
6.5J
205
195
215
7.0J
215
205
225
7.5J
225
215
235
8.0J
235
225
245
8.5J
245
235
255
9.0J
255
245
265
9.5J
275
265
285
Let's take a wheel hub with a rim width of 7.5J as an example. The corresponding standard tire width is 225, but it can also install tires with a larger tire width of 235 and a smaller tire width of 215.If you still want to install tires with larger or smaller tire widths, you have to replace the wheels.
