Bike Forums - 3-piece hubs identification

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3-piece hubs identification

I'm in the airport, a bit bored, so I am cross posting. I had the opportunity to take pics of Campagnolo, FB and Gnutti 3-piece hubs. This is how you tell them apart.

Front hubs, left to right, Campagnolo, FB, Gnutti. Campagnolo has a bulbous end. Gnutti's end is more square than the FB end.https://cimg4.ibsrv.net/gimg/bikefor...eb4dc512e3.jpg
Rear hubs, left to right, Campagnolo FB, sorry no Gnutti. Campagnolo again has a bulbous end, and even a slight bulge on the threaded end. FB is square and while I don't have a Gnutti example, it follows suit with the front being more square than the FB.

https://cimg6.ibsrv.net/gimg/bikefor...cbffc4b5f4.jpg

https://cimg2.ibsrv.net/gimg/bikefor...b2076ea0f2.jpg

Thanks for sharing, I'll be sure to save this post for future reference. Safe travels wherever you're headed.

Any idea when that Simplex was made?

FB did make Simplex-branded hubs. But perhaps after 1951 when FB's patent expired, Simplex started making their own. Like Campagnolo.