Munari wheel anyone

[ProtoTipo]

Aftermarket hubs would be needed for the Ferrero if fitting to a Fulvia (this one was too small a diameter to be really useable on a Fulvia as I pointed out to the vendor). As such the after market hubs have a carbon spring loaded horn contact and the (momo etc) button is connected the normal way by a wire. I believe the S2 Fulvia steering shaft is same as X1/9 (but not s1 Fulvia).

I'll have to bow to your Fulvia knowledge Tim,

I had this Fulvia Ferrero hub (the steel one showing the side in my photo here, which has the spring loaded Fulvia contact) and it did fit the X1/9 splines, but the horn contact was no use for a Stratos replica.
I'm not sure what the horn contact on the bottom of the hub on the left is? It's not X1/9 and obviously not the spring loaded type as Tim describes?
This Ferrero 2 spoke, dished with one hole in each spoke design came in 3 different diameters (see attached showing each to scale).