Originally Posted by
Charles Wahl
why would the cones or their threading be any different for solid or hollow axles?
Historically,
most solid axle hubs had smaller diameter axles than QR hubs, and the cones were not interchangeable. Before maybe around 1980, I never saw a solid axle in 10 mm except for on top quality track hubs such as Campy (with their 26 tpi thread). Never saw any in M10 x 1mm back then myself; anyone else know of any?
But by the time this hub was made, solid axles in M10 x 1mm were indeed a thing, made by a few manu's besides Shimano too, such as Suntour and Specialized. What changed in between was MTBs. They (1st Stumpjumper for example) originally came with solid axles, on the mistaken belief that those are stronger. (I obviously don't believe they are.) Certainly with a freehub, hollow axles are strong enough, and the OEMs quickly figured that out and stopped putting nutted hubs on MTBs. So nutted MTBs were a "thing" for only a couple years in the early to mid- '80s
Mark B