FS wheel hub centering rings for 17" 6URL wheels

got some 949 wheels in 6UL

somehow wound up with a set of four of these that are needed only for the 17" wheels they sell

http://949racing.com/hub-rings-6ULR.aspx

the blue color must add 3hp

they are $3 each, so if anyone needs them, $6 for all

67mm to 54mm

so they fit a 67mm outter and go to a 54mm inner for a na miata?

hmmmmmm these might be cool on my rota RBs....let me consider :)

you'd have to try them to see if the taper and depth etc fits something other than a 949 wheel