They appear to be the same as they look and measure the same on the outside. The nicest hub has a half inch pitch cog, the others are one inch pitch. I would like to rebuild one using the best shell, interior parts and one of the inch pitch cogs. I don’t know if this is possible until I tear into them.
It’s not going so well. The interior parts of the three hubs aren’t interchangeable. Subtle differences to the same design. I’ve rebuilt 2 speed coaster hubs, Bendix single speed coasters, Shimano coasters and these are harder to work on than any of them. I thought the Bendix 2 speeds were difficult but these, so far, have me stumped. There are no service instructions, all I can find is the patent drawing. I’ll keep tinkering, but each time I rebuild one it doesn’t work. Grrrr. My spokes came yesterday.
