Hadley Hubs
From Pvdwiki
Hadley Rear MTB hubs are some of the best in the world. Dura-Ace, XTR, and Chris King are all of paramount quality, but only King is as flexible a design. When you invest in Hadley hubs, you get a flexible platform that will change as your needs change.
A Hadley Rear MTB hub can be converted to any of these configurations very cheaply:
10mm QR
10mm Through Axle
10mm Ti Bolts
12mm Through Axle
14mm Through Axle
15mm Through Axle
16mm Through Axle
17mm Through Axle
This saves the rider a lot of money as he/she moves from one frame design or option to another.
A Hadley disc single speed cassette hub with a 10mm through axle.