Originally Posted by Dinoburner
If memory serves back in the early days of the automobile it was decided that spark plugs would be metric and tire sizes would be the kings inch ...
So why are automotive tire sizes a crazy mix of inch diameter and metric width? Standard bicycle parts and threadings are a confused mixture, as well.
If memory serves back in the early days of the automobile it was decided that spark plugs would be metric and tire sizes would be the kings inch ...
So why are automotive tire sizes a crazy mix of inch diameter and metric width? Standard bicycle parts and threadings are a confused mixture, as well.