Ok, this is totally a newbie question. I seen on like one of the WOS videos that Twisty had like a "warmer" or "sock" around the front brake fluid reseviour (sp). I've also seen this on some other bikes (ie: racers really).
Can someone tell me why? What is this supposed to do? Any benefit? or just for like looks and a "I know what I'm doing on this thing" statement?