Lock the welder

3 Other Shops?

The other day a nice guy came in and told me he had a problem. He kept blowing up the bearings in his rear wheel. He said three other shops had worked on it, but the bearings kept going- the last time on the highway! I took a look at it and asked if there was a spacer between the bearings. He wasn't sure so I opened it up and here's what I found...

1. bearing on left completely destroyed 2. no spacer tube between the inner races of the bearings 3. random piece of PVC pipe 4. steel pipe hammered into the ID of both bubs (had to press the hubs apart after the bolts were out)

The hub with the brake/pulley on it looked like this..... looks like the raised lip that is designed to center the disk on the hub was too big. The guy who built this must have just trimmed it a bit with a whiz wheel! who needs a lathe....

Ahh nothing like a destroyed bearing pressed in 3" with no access to the back of it...

A little while getting all the destruction removed, then a new stainless inner spacer, 2 new bearings, some loctite and done. He wouldn't let me to fix the hacked up lip-  weird.

I caution anyone buying a custom bike to take time and think about who built it. Does the person really understand how a motorcycle works? Do they understand basic engineering? If they don't, it is you, not them, who will pay the price- and it wont be when you are going slow either.