Join Date: Jul 2008
Location: Grid Reference, SK
Bikes: I never learned to ride a bike. It is my deepest shame.
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Originally Posted by Retro Grouch
Finding replacement cones is easy. Finding exact replacement cones is hard.
The issue I've frequently encountered is the diameter where the cones pass through the dust cover on the hubs. You either have too much space or they don't fit.
If the thickness isn't exactly right that's easy to adjust by adding or subtracting washers or spacers.
The most important part is to find a cone with a very similar or identical shape to the bearing surface, ans a very similar diameter. If the threads work on the old axle, great, if they don't fit you have to find a new axle and locknuts too.
My stategy is to sit the original cone, and all the washers and spacers used with it, onthe table in a stack in the same order they would be on the axle. Take the new cone and build a second stack, adding, removing, and swapping spacers and washers until you get the identical height. This is most easy when you have a wide inventory of parts next to your workbench.
Once you have the new cones selected and the spacers and washers chosen, keep the stack together and build up the hub - it should be good as new.
THere is a guy who lives on the edge of my town who runs alittle bicycle junk/repair shop and I realized he had replaced the cones on my sunshine hubs (off an early-'80s Fuji Sundance) with the most generic and common cones used in Canadian shops before I got the bike (I found it in the garbage). The hbs have since self-destructed, but worked well for a while. I don not think it was the fault of the cones that the hub got ruined.