So winter has arrived her in Montreal. The snow is falling, the ice is freezing and I am spending many many hours on my trainer. And I noticed something during a 4hr (yes i'm showing off) marathon earlier this week: my legs are not the same length. My right leg is perfectly happy all the time, while my left leg gets figity and I have to slide way back in the saddle to stretch out my knee. Now, I understand that this is fairly normal...but are there things that can be done to reduce the strain on my knees? I've heard the concept of shims (sp?) being tossed around...but I don't really know what that is. Anyone care to edumacate me?