Lezyne helmet mount kit for xl lights composite is an affordable adjustable bracket system that allows fitment of all 2011 lights and 2012 xl range to just about any vented helmet full composite matrix construction smaller foot plate than the cnc helmet mount kit may suit some helmets better depending on your vents pattern ideal for off road riding and for urban use when you want to spot cars with a turn of the head comes as part of the xl loaded box sets