So, I'm trying to be all self-sufficient and not take my bike to the shop for every little thing. I thought changing pedals would be a pretty simple operation, but I think I have the wrong pedal wrench. My bike is a Novara, and I bought a flat wrench. The guys at REI were all busy with other customers, so I didn't ask if it was the right one. When I started trying to turn the nut, I couldn't move it at all, and then realized that the inside of the pedal looks as if that may need the other type of wrench with the allen-head. Does this make any sense to anyone? Am I on the right track here, or do I need to just say uncle and load up into the car and go to the bike shop?