Creaking / knocking when I pedal

worth having a close inspection of your frame for cracks if you can hear a creaking noise - it would fit your described symptoms

I got it from BLB before I had any degree of bike knowledge what so ever, so knowing my luck you're probably right. I'll have a good look tonight, and keep my fingers crossed.

I'm not sure what BB I've got, but I know it isn't a miche (they didn't have one available and had chucked the box and couldn't remember the part when I picked it up). My crank set is a miche advanced.

does anyone fancy giving me a lesson in how to extract and install a BB and cranks? I'd be eternally grateful, and you'd be rewarded in beer. can do any night this week except tomorrow, going to see Radiohead in Victoria park (whoop).