- Mar 14, 2011
Only a very few companies make bicycle parts in the USA anymore. Most are made overseas, predominantly China. Many Americans still don't know how big 9 or 10 mm is but knows how big 3/8" is. How big 13 mm is but knows how big a 1/2" is. Etc. Therefore it gets advertised in a standard measurement so Americans understand it. The thread pattern and nut size is usually the give away as to what you actually have.Plenty of 3/8 axles
I have these front is converted to cromoly 3/8 axle and still loose ball. Rear is converted to 1/2" axle and sealed bearings.