Sunrimoon CS-07 Zeta Bike Helmet - Classic White Size:M (54-57cm) Toothing: 54 teeth

Toothing: 54 teeth

CASSETTE INTERFACE: Sram XDR

Net Weight: 273g

0mm (FlexTight SP-11) Water resistant：IPX4 Other：Clothing clip included

Sunrimoon CS-07 Zeta Bike Helmet - Classic White Size:M (54-57cm) Toothing: 54 teethCS 07 ZETA The seven air inlets at the front end and the seven exhaust vents at the rear work in tandem to effectively equalize the air flow ratio. the helmet is reserved for the tail safety warning light interface (optional), which can significantly improve the safety of night riding. Ride in the bold color of ZETA and let every mile reflect resilience and power. 3D GRID Elastic Matrix System This system uses a 3D GRID, a "dense soft supporting body"