This is not a SFW instance. NSFW communities will be tagged, and efforts will be made to keep SFW communities clean, but proceed at your own comfort level.
Even in the US we use metric tire sizing apart from a select few offload tires, which is annoying because its not even actual dimensions but more of a ratio or percentage of the overall width of the tire (in addition to the wheel size being in inches as you mentioned).
both for car and light truck tires. inches for wheel diameter, millimeters for tread width,
Even in the US we use metric tire sizing apart from a select few offload tires, which is annoying because its not even actual dimensions but more of a ratio or percentage of the overall width of the tire (in addition to the wheel size being in inches as you mentioned).