Gallery, Projects and General > How do I??

Anyone a Mountain Bike Expert?

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sparky961:
The new bottom bracket arrived in the mail today.  Like many others (as I found from Googling it), I was surprised to discover that one of the nuts/cups is plastic!  When I got to reading about it though it seems it installed to the proper torque it should perform just fine.  When you think about how it works, it isn't actually retaining the bottom bracket; that's what the attached metal thread is doing.  It acts as a shim of sorts to prevent any movement in the side opposite the drive - if that makes any sense.

I had considered making up a new metal nut/cup when I first saw it but after reading what others have to say about it I think that's a waste of effort.  Arguably so is my upcoming attempt at making a tool, but we've already discussed that one. :)



I also have to say that the bearing doesn't seem as smooth as I'd have expected.  Maybe this is what I get for purchasing an inexpensive product.  I'm hoping it will smooth out after some break in.

Sid_Vicious:
Most of these are possible to separate and change the bearings in them, but most of the time it's cheaper to just buy a new one.

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