No p/x
Maybe its the kit, but both the nardi and the momo are fitted to the same snap off kit if that helps. If you want you can try it no bother!
To be exact the snap off kit was 38,500 yenor about €350 but the quality is excellent. My one year old kit is still in the same nick as her 1 month old kit. And they come with a decent lock too which goes on over the adaptor.
I got them through powervehicles but I have seen them on the yahoo auctions for a lot less second hand, Carpo would be your man there...
Twinky that might explain it cos the works bell kit does have two sets of bolt holes....
My HKB boss worked for that Nardi so if you buy a HKB boss from RHDJapan you can fit the Nardi. That wheel was mint when I sold it, no wear at all