Sunrimoon CS-07 Zeta Bike Helmet - Classic White Size:M (54-57cm) 86-millimeter wide bottom-bracket design (92-millimeterwide

86-millimeter wide bottom-bracket design (92-millimeterwide for off-road bikes)

yet sharp effective braking and cornering edges

transmitting to the app or device the same data sent by your heart rate monitor

Cocoa Butter

designed for full clincher & tubeless tire compatibility

Sunrimoon CS-07 Zeta Bike Helmet - Classic White Size:M (54-57cm) 86-millimeter wide bottom-bracket design (92-millimeterwideCS 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"