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	| Selective speed. When Giro looked to up its aero game  it didn  just paste new stickers onto its Advantage helmet. It looked at the data and redesigned it to create the Giro Selector. This helmet is now a standard in the professional peloton and should be a part of your aero kit as well.   Giro used wind tunnel testing to sculpt a shape that works with your position on the bike to lessen the drag coefficient. On the front end  you l notice the eye shield. Not only does this minimize tear-inducing wind in your eyes  it also smooths the leading surface so that the air moves over it faster. An added benefit is that the shield also acts to block out excess wind noise. Two vents help direct the air through the helmet and out the back vents to cool your head. For those who prefer sunglasses  however  the shield is removable. On the other end  the tail of the Selector helmet is closed on the underside and comes in two lengths  10mm and 45mm. Each is designed to work with your body position and the choice depends on how low your shoulders and arms are. The helmet should sit low and close to your back when you are in an aero position.   To secure the Selector  Giro uses the Roc Loc TT system. Different from the older Roc Loc 5 system  the TT uses a spring leaf system to apply even tension to the front and back of your head in order to secure the helmet. The body of the helmet is an EPS-injected molded liner with the Giro SL Roll Cage system and a polycarbonate shell.             Time trial  triathlon   Removable front shield   10mm and 45mm rear inserts   Roc Loc TT strap system   Item #GIR0398         Learn more
 Tech Specs:
 Shell Material   polycarbonate       Fit Adjustment   adjustable chin strap   Roc Loc 5 TT       Visor   yes       Recommended Use   road       Manufacturer Warranty   1 year          Learn more
 
						
							
								| ¡é color : White/Silver 
 ¡é color : Black/BrightRed/White 
 ¡é color : Black 
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