The Slumworm guys have been riding these female front hubs on their Specialized PFix bikes for a little while now and they’re confident that these are the answer, not 14mm bolts. A female front hub is similar to the system that Phil Wood, Profile and Paul use, but just in a beefier version. What do you guys think?

While you’re over at Slumworm, make sure you scope out the new size medium PFix prototype. That looks like a lotta fun. Solid build for sure.