I am in the process of replacing my worn out bottom bracket. After removing the crankset I see that there are no insets on the bottom bracket for my bottom bracket removal tool to latch on to:

enter image description here

According to the bike manufacturer the bottom bracket is fully enclosed as seen in the picture. I have tried prying the black cap off with a screwdriver but it wont come off. Applying more force with the screwdriver seems to damage the frame and cap as seen in the picture below. The cap seems to be made of some hard rubber type material.

enter image description here

How do i remove this type of bottom bracket?

  • I think the answer might be 'use more force'. What does the other (drive) side look like? Just out of curiosity, what is the thing attached to the drive side of the BB shell? Oct 27 '19 at 12:58
  • Alright thank you, the drive side looks the same and the thing attached on the other side is a mount for the chain / crankset shield.
    – user45914
    Oct 27 '19 at 13:47
  • 1
    Also try unscrewing it? What does the text on the BB around the axle say? What's the make/model of bike? Oct 27 '19 at 13:50
  • 1
    @Carel Thanks for the heads up.
    – user45914
    Oct 28 '19 at 18:42
  • 1
    Looks like threads under the rubber cover? FYI the thread might be left hand Oct 28 '19 at 19:02

I contacted the manufacturer and they said to use a hammer from the drive side which worked perfectly.

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