I have a pair of 50's NOS Gran Sport Large Flange 3-piece hubs that I am going to assemble. I have searched high and low for information as to the correct bearing sizes, correct axles and correct cones for these hubs. A big photocopied catalog that I have shows the exact 3-piece hubset that I have along with the ORIGINAL Campagnolo part numbers complete with reference numbers. But what good is this information when there is no source of reference for these 50-year old numbers?
My questions to anyone on the list who is experienced with overhauling these hubs are simply:
1. For the large flange 50's FRONT 3-piece hub: What size bearings does it use and how many does it require per side?
2. Same question as question #1 for REAR hub.
3. I have been told that Nuovo Tipo cones will work for the front hub. Is this correct? If so, what cones will work for the rear?
4. What kind of Campagnolo model axles will work for these hubs. From all of the good color photos I've seen, it appears to be the bronze colored axles (used for Nuovo Tipo hubs.) Comments?
If you have a real Campagnolo catalog #18, please look at the set on page 35. The set is Campagnolo model 1253. Then if you turn to page 38, you will see the exploded diagrams for the 1253 hubset. Are these the parts I should go with?
Thanks.
Ted Baer
Palo Alto, CA