The perfect entry point into the SPEED series. The SPEEDster helmet features the brilliant adaptive aerodynamic design with a modular system where a SPEEDmask can be added or replaced at any time. The adaptive aerodynamic design that is unique to the SPEED series allows for the helmet to adapt to the rider's head position while delivering perfect aerodynamics. Along with the SPEED series capabilities, CASCO's offers many other patented unique helmet features.