acurint
Wore out three sets of tires already!
Great advice, I just happen to rarely see them for a reasonable price locally. You already know eBay prices. But I did pick up a set for $15 thanks.My advice is to not buy individual replacement parts but buy any complete hubs you find for a reasonable price. For example, the hubs have very few "wear parts" with the exception of the indexing spring. One extra hub in each color, will give you all the parts you would ever need.
John