Giro Advantage 2 Time Trial TT Aero Bike Helmet 2009

The 2009 Giro Advantage 2 Time Trial TT Aero Bike Helmet is the most prominent aero helmet ever created. The Giro Advantage 2 Time Trial TT Aero Bike Helmet is shaped with input from the worlds fastest riders over 23 years. The choice of elite professionals like Alberto Contador, Levi Leipheimer, David Millar and Alejandro Velverde. The Advantage 2 represents the pinnacle of aerodynamic performance, fit and ventilation. Simply put, it's what the world's best riders wear when every thousandth of a second counts. The 2009 Giro Advantage 2 Time Trial TT Aero Bike Helmet is the ultimate in aero helmets and time trial races.

TECHNICAL SPECIFICATIONS:

Features:

• Wind tunnel and competition-proven design

Fit System:

• Roc Loc 4 - Giro's Roc Loc 4 is the industry benchmark for adjustability, durability, and rider comfort. It offers full adjustment of both fit tension and vertical position, for a truly custom fit that makes Giro helmets more stable on your head, especially on rough roads or technical trails.

Construction:

• In-mold - Fusing the sleek, four-part outer shell with its impact-absorbing EPS liner to create a single integral unit. The two materials are literally fused together, each reinforced by the other. This 'exoskeleton' allows helmets to be lighter, more durable, and better-ventilated than traditional road helmets.

Ventilation:

• 5 vents
• Internal channeling - Giro helmets are designed to allow air to circulate within the helmet, allowing the rider's head to be more ventilated.

Sizes:

• Super Fit
• S: (20"-21.75" / 51-55 cm)
• M: (21.75"-23.25" / 55-59 cm)
• L: (23.25"-24.75" / 59-63 cm)