Our cups (also known as mounting rings) are sold separately from the bottom brackets and are available in all the threadings (British, Italian, Raleigh Super Corsa, French, Swiss, and Chater Lea). Extended cups with a left-hand lock ring are available in British threading for use with E-Type derailleurs or to hold a bracket to mount a chain guard. Occasionally, when British threads are damaged, mechanics have been known to salvage the frame by tapping the damaged side for Italian threading and installing an Italian cup on that side. Phil Wood cups are also available in singles to accommodate these issues.
The Phil Wood spindle diameter is 17 mm, and uses our unique cupped flats for crank arm retention.