I have an aluminium frame Raleigh bike that's been stuck at the back of my garage for a few years now. It has a wobbly bottom crank. I assume the bearings have gone, but A; I don't have the tool to get the crank out, and B; I don't even know if the crank can be replaced.
It has square things that the pedal stems attach to each side, and after I managed to force the pedal shafts off the crank, there was a thin nut (lock nut?) which I removed from the protruding thread. I don't have a picture currently, but the right side(where the thin nut was) looks like the left side of this picture;
which is a Tredz.co.uk Raleigh crank.
So how do I find out which crank I need and what tool I need to remove the old one? Also, do I need any extra tools to install the new one?
I'd love to get the bike working again, and the cranks seem to be pretty cheap.
Thanks to you guys I could move forward with a better understanding of what I needed to do. For clarity, here are some better pics of the bike and the removed BB:
(click for original size)
I mistakenly thought it was a Raleigh, but that was my other bike. This one is a Radford. The new BB I bought looks a lot like the one I posted first actually. Thanks for the help Guys.