Blue bike, didn't catch what sort, rider had a nice new white Dianese jacket on. If you are this person or know this person PLEASE get them to learn to check their blind spots when changing lanes! I rode with you for some time on the Monash just now as you repeatedly changed lanes and weaved in and out of traffic and not a single time did you check your blind spot, it was only the avoiding action of a car driver as you came across two lanes that stopped you being a greasy spot on the Monash mate. I don't want to witness that and i'm sure you don't want to be involved in that. We as riders crucify car drivers for not doing checking blind spots and if it had been reversed i'm sure you'd be on here venting about the stupid car that almost ran you over, well today it was the car that saved your life when YOU didn't look.