Dwight wasn't saying it was your fault at all he was just speaking to things more experienced riders do that help avoid situations such as rear end collisions at a red light. In your case an experienced rider may or may not have seen it comming. I watch my mirrors alot while riding but not always since in many cases a car has to be going pretty darn fast to catch up to me.Learn you danger zones and be very alert to your surroundings is the point he was trying to make.

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