Where are the replacement hub cones?
 

I'm rebuilding the front wheel hub of a Shimano 105, HB 1055 from the early 90's. The hub cone on the left side needs to be replaced. I've contacted every LBS in the area and no one has a replacement cone. On-line, the only company that has a possible replacement cone is niagracycle.com. Any suggestions as to where I can find this replacement cone?
Tsapp

Yes. Niagara Cycles.

I was in this situation for my wife's bike. I ended up buying a quick release axle from my LBS (not the whole hub, just the axle). It came with the cones and nuts and. Was cheaper than paying shipping from an online shop.

Cup/Cone hubs and bits can be sourced when new and current product but inevitably partszand bits supply tapers off when it current.

However, even perfectly adjusted cup/cone hubs that are heat treated wear the inner race of the hub, resulting in an ever deteriorating performance curve. Should be considered "disposable" unlike lifetime sealed bearing hubs.

At our local bike Co-op, we have a 10-pound bin of every sort of hub cone. I'd bet I could find a dozen compatible cones and have yours replaced and you out the door for less than $10.

We've never failed at restoring decent quality cup and cone hubs.

Unlike cartridge bearing hubs, which are generally throw-aways. We cannot stock a multitude of obscure carts, and many times we cannot get the old ones out.

Listen up: your local shops do have the replacement cones - and in stock. They are in some drawer, or they can be scavenged from a taco'd wheel in the back. Your shop staff are not motivated enough to find them, plus they see more profit in selling you a new set of wheels.

The way you deal with this is to make it clear, right from the first sentence, that no matter what happens, you are not going to buy a new wheel - at least from them.

Then drop a stack of $20 bills on the counter, and ask them how much it is going to take to find this part. Then watch them scurry.

Bike shop guys love cash. Only cash.. go figure.

Check the charts on Wheels Manufacturing website.
Wheels Manufacturing Axles, Cones & Hub Parts

It says: CN-R096
Wheels Manufacturing Cone CN-R096

You can find that cone on many websites for $10.
Universal Cycles also sells a seal for it.
https://www.universalcycles.com/shop...s.php?id=42714

My LBS could not find a cone for me in their bin. 1990 Trek with Joytech hub, apparently the thread pitch is not 1.0.

You do have a fixation on wearing out cup-and-cone hub inner races don't you? I've got both Shimano and Campy cup-and-cone hubs with 40,000 to over 50,000 miles on them and the inner races are smooth as glass. The wheels spin very freely and "pendulum" several cycles to a stop. How much better to you expect?