New answers tagged bottom-bracket
It could be that you've cross threaded the lock ring, although you should notice this within the first few turns. To prevent it coming loose again though you could try some loctite on it.
I just tried a google image search to see what they look like because I'm not familiar with Miche. The pic isn't perfect, but does give an idea that the splines don't have a taper on them like yours. Glad you were able to sort it with your LBS.
It's a generic BB. The 3P code on the spindle is a clue to the size. http://www.sheldonbrown.com/bbsize.html Sealed cartridge BBs are ridden until they fail (ie bearing disintegrates, like in your case) at which point you buy a new BB unit. You can try just getting the bearing (but IME it can be a frustrating endeavour). There should be numbers on the ...
It appears to be a standard square drive sealed cartridge type bottom bracket. It looks as if it came apart. Normally the bearings are not removed from the shaft but are removed and replaced as an assembly. If you measure the width of the frame where the bearings were removed you should measure 67mm or 73mm. Measure the length of the square driveshaft. The ...
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