I've noticed recently that on my Galaxy, when I'd pedalling along there is a clicking after each full turn of the pedals. It sounds like it is coming from the right hand side. The pedals don't seem loose. I was thinking perhaps it was my cleat, but it doesn't make a noise on my other bike. The chainset doesn't seem loose either. I'm not quite sure what the bottom bracket would do if it was slightly loose. Any ideas on what it could be?