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shimano bb plastic ring broken help!(3 posts)

shimano bb plastic ring broken help!twobits
Jun 2, 2003 7:18 PM
the plastic lock ring on my 1991 shimano cartridge bb has broken, while in the frame. how do i remove the bb now??
Are you talking about the non-drive side plastic cup?Dave Hickey
Jun 3, 2003 5:57 AM
If it's the non-drive side plastic cup, just remove the drive side cup and BB first. Many times the non-drive side cub will unscrew by hand.
Are you talking about the non-drive side plastic cup?twobits
Jun 3, 2003 6:36 PM
the problem was that the plastic which was part of the bb body had broke in two so i let loose with a hammer and it popped out. no harm to the frame threads. it's all good.