Gist Helmet Sonar Black/Red Size:Small-Medium 48cm - 56cm Designed for track racing with

Designed for track racing with a 700c size and 17mm rim depth

1 mm (ID/ID) Integrated Headset

CenterLine offers quiet brake operation

Double shell In-Mold for durable fusion of the outer shell and the shock-absorbing helmet material (EPS)

Gist Helmet Sonar Black/Red Size:Small-Medium 48cm - 56cm Designed for track racing witheatures Sonar protection, comfort, and design in a single helmet. Extremely ventilated thanks to the 25 ventilation holes that guarantee a continuous dispersion of sweat in any position the athlete takes. Also available in the innovative Holeographica color for those who want to ride in style. Construction: I MOLDING Technology. External shell in polycarbonate and shell in expanded polystyrene. Fit System: Quick lock fit system Ventilation: 25 Wind