This is the aero helmet you want when you’re pushing your limits in racing and training. The Tardiz2’s aerodynamic shape and design features will ensure you’re cool, comfortable, and most importantly, fast.
 
FIT 
Head circumference in CM :        S 52 - 56   |    M 55 - 59   | L 58 - 61
 
Features:
 
Adult Aero Helmet: designed for triathlon and time trials, the Tardiz2 is wind tunnel tested to deliver peak personal performance
Speed Enhancing: features teardrop shape, small frontal area, and dimpled tail section that work in unison to enhance aerodynamic efficiency
Precise Fit: Lazer TurnFit Plus system features easy-to-access adjustment dial that ensures a secure and comfortable fit during fast transitions
Keep Cool: built-in Aquavent allows you to squirt water directly onto your head when the pace or temperature heats up
Eyewear Friendly: open design around front of helmet and ear pads allow for use of any eyewear without compromising fit