Sena R1 Smart Communications Helmet - Onyx Black Size:Medium air pressure and estimated elevation

air pressure and estimated elevation

Larger driving cogs maximize drivetrain efficiency and create compatibility with both Shimano 11 and 12-speed FREEHUB bodies

With the addition of lightning fast WiFi

NEW - WiFi connectivity for faster

Drive Side Adapter for 12x142 and 12x148 Thru Axle

Sena R1 Smart Communications Helmet - Onyx Black Size:Medium air pressure and estimated elevationA SMART HELMET THAT LETS YOU CARRY THE CONVERSATION The R1 Smart Cycling Helmet is a blend of technology and traditional construct, integrating a communication system into the shell of a cycling helmet. Whether you ride alone or in a group, the R1's features appeal to any class of cyclist. Built in speakers and microphone Group intercom Phone pairing Engineered for comfort & security BUILT IN COMMUNICATION FEATURES TO ENHANCE THE RIDING EXPERIENCE The