Gamechanger 2.0 MIPS Helmet Maximum Head Circumference:58 Compatible with Shimano 9-Speed STI

Compatible with Shimano 9-Speed STI levers

the new Turbo 2BR can self-seal punctures when used with RapidAir sealant

Less vibration is transferred to the rider

Anodized Black with laser etched logos

Gamechanger 2.0 MIPS Helmet Maximum Head Circumference:58 Compatible with Shimano 9-Speed STIWhile you're riding at your mental and physical best, the GameChanger 2. 0 takes care of your head climate and aerodynamics. The AirBoost air inlet at the front and the wider rear with Aero Blade provide optimal ventilation and reduced drag. At lower speed, the Aero Blade allows air to flow in and helps accelerate the wind flow inside the helmet. This creates a cooling effect that regulates head temperature on long rides and steep climbs. Aero Blade