I have a Phil Wood high-flange tack hub (fixed-fixed). It came with a beautiful lockring that has six notches in the ring. It is slightly larger in diameter that my Dura-Ace lockrings with two notches.

http://www.philwood.com/pdealers2.htm

I have measured the diameters and they seem to exactly match the configuration of the Park Tool BBT-7.

http://www.parktool.com/products/det...=25&item=BBT-7

• Not having tried it, I have to ask: does the Park bottom bracket tool (BBT-7) actually fit the Phil Wood lockring?
• Was that the intent of his design?
• Where can these Phil Wood lockrings be purchased?