creaky sound when cranking My bike seems to all of a sudden developed a creaking sound when I pedal. It appears to be there in every gear. Bu t I noticed it appears to only happen when I put pressure on the left pedal. What could it be ?

It could be:

* The pedal itself (even if it moves freely)
* The other pedal
* The bottom bracket
* The saddle
* Loose crank



Try to isolate each one of these by taking the weight off each in turn.

I was recently convinced my saddle was creaking as it only happened when sitting down but it turned out to be the left pedal!