This is a pair of the aluminum hubs that fit stock 914 struts allowing use of vented rotors and calipers for vented rotors. Hubs come with new bearings and seals. You will need late type 911 grease caps. Bolts for rotor attachments are included. Spacer rings were made for the wheel side to provide a level uniform surface to contact the wheel.
Price is $415 shipped in the U.S.
These can use 911 M calipers and 20mm 911 vented rotors 1969-1973. Rotors and calipers not included.

I bought a set of these when they were first introduced ; best upgrade I've done. Well designed, strong, and easy to install. Adding vented front rotors and 911M calipers is fantastic