A3 Helmet Halo Purple Color:PURPLE 4D angled spoke drilling eliminates

4D angled spoke drilling eliminates binding and lateral loading and disperses tension more evenly over a greater area Brake Compatibility Disc Only Rim Width (Internal) 23 Brake Track None Manufacturer Spec ERD (mm) 606 Material Alloy Valve Presta Color Black Weight 443 Wheel Size 29" Defined Color Black ISO Diameter 622 / Road / 29" Hub Drilling 32 Rim Material Alloy Tire Type Tubeless Ready Rim Center Offset (mm) 0

and that's how it's stayed

Trigger Valve Operation for easy and controlled inflation

Black laser etched seal collar

A3 Helmet Halo Purple Color:PURPLE 4D angled spoke drilling eliminatesHead of the class, A3 leaves nothing to chance by setting the modern standard in protection and fit as demanded by Troy Lee Designs athletes. Equipped with Mips protection, the co molded EPP EPS design features sixteen vents to optimize airflow making for a helmet that is so comfortable it practically disappears on your head.