Bottom Bracket threads......HELP
- Thread starter Chips_Mahoy
- Start date
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This one says Italian too. http://www.ebay.com/itm/Original-VINTAG ... 1040584146
That will make this project much tougher. Unless the bike shop has an Italian die for rethreading. I see you can weld. It may be easier to weld in a new BB Shell.
That will make this project much tougher. Unless the bike shop has an Italian die for rethreading. I see you can weld. It may be easier to weld in a new BB Shell.
cman said:
That's exactly what I have in the link.
My axle length is like 146mm but it doesn't have the "bolt on" crank arms. They slide on and then a wedge like pin goes in to hold it. I don't mind changing those. If the ones from Niagara Cycle that Sinner4 posted will work with this particular bike and small BB, I'll probably order one.
Chips_Mahoy said:
Current BB shell options
- Rethread the threads at a bike shop using the appropriate die (italian or british(standard)).
- Reface face the shell to a 68mm width and Maybe one of those repair bottom brackets would work. Bike shop would need to reface.
Or
Replace the BB shell and use the BB cartridge that came with it.
cman said:
I hate to do that but that may be the best option. If I can get one over the next 2 days then I just might have to do it...... :shock:
Bicycle808 said:
I'm about to leave to go to the bike shop right now. I found the missing bearing cup so all I have to do is find the right bearings and I'm good!! Stand by for an update later today....
Well.......that was a big bust. Evidently the bearing size is an oddball size and nothing fits. The guy there tried to find something but no luck. So now I'll proceed with my Plan-C and hope for the best....... :?
Chips_Mahoy said:
Could you go loose ball on it?
Luke.
Luke.
I'm still lost here.... are the threads damaged, or was the cup just missing? If the threads were damaged beyond repair, as indicated earlier, then finding the og cup and proper bearings wouldn't have helped anyway. If the threads are salvageable, then why not just get a un55 in Italian-flavor????
I think I've got a fix for it!!! It's a little odd but it works!!
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The drive side will get the inner cup and bearing. The non-driver side is getting a flanged bearing with a 1 3/8" OD and 5/8" ID. It fit into he BB and over the crank shaft perfectly. I don't know if this would be a good fix for a bike that's used heavily, but for this bike's light use it should work okay. What do you think??
The drive side will get the inner cup and bearing. The non-driver side is getting a flanged bearing with a 1 3/8" OD and 5/8" ID. It fit into he BB and over the crank shaft perfectly. I don't know if this would be a good fix for a bike that's used heavily, but for this bike's light use it should work okay. What do you think??
Yes.....the threads on both sides are destroyed. That's why I couldn't use the original threaded cups and had to use something else. The cup and flanged bearing I ended up using fit in there nice and snug on each side.
