I was looking around on eBay (I'm a little addicted) and saw this BMW. I thought it was pretty cool and then looking through the pictures I noticed there is a brake failure indicator light. My first thought was that it's a little unnecessary because I'm pretty sure I would know when the brakes are failing without a light coming on. Then I began to wonder if brake failure is so common on these bikes that BMW actually made a light for the situation. I'm just not sure about that. Any thoughts?