Perculiar Plastic (Shimano?) bottom bracket: removal method?

Cheers everyone for the replies, very useful to know.

I ordered the a tool online (although not the recommended one as I'd already ordered it before that reply appeared) and am pleased to say that the bottom bracket is now successfully removed.

Following your recommendations I'm going to keep the cartridge, clean it up and reinstall it back into the frame once it's been sprayed. There's no play in the spindle and it turns nice and smoothly so it should be fine for some time yet.
 
Back
Top