Bell tracker helmetone of the most impressively versatile helmets on the market, the bell tracker works on or off road, when youre training hard or just out for a casual sunday ride'. '.strtoupper('b')uilt with a fusion in mould polycarbonate shell that offers sturdy protection and intense comfort, the outer section of the tracker is bonded to a tough and durable eps foam liner, with a fit that can be changed with just a flick of the wrist thanks to the ergo fit dial system.even more comfort is added to the mix when you consider the 25 cooling vents built into the helmets construction to optimise airflow around your head and even further improve your aero ride'. '.strtoupper('o')n top of that, the straps are totally free of those annoying twists thanks to the easily adjustable fasteners that keep them flat and in place'. '.strtoupper('t')he front visor is removable giving even more choice in how you wear it, and at just 289g, it wont weigh your performance down for a second.featuresfusion in mould polycarbonate shell a process pioneered by bell bonds the helmet's outer shell to the eps foam liner to create a sturdier helmet.ergo fit sleek dial system for one handed adjustments25 ventsno twist tri glides quick adjust fasteners that help keep straps flat and properly positionedremovable visorce en1078 certifiedweight 289 gramsbuy bell protection from chain reaction cycles'. '.strtoupper('t')he world's largest online bike store.