Smooth thermobonded upper for lightweight durability and a snag-free profile

Reversible valve head fits both Presta and Schrader valves

Simultaneous mounting of Phone Case & lights or action cam

RADIUS: 12

Bontrager Circuit MIPS Helmet bikes__women Smooth thermobonded upper for lightweightHit the Road. Whether your finish line is on the race course or at the front door of your destination the Bontrager Circuit MIPS road helmet will deliver the performance you need. It's equipped with all the best features, like MIPS brain protection system, Boa fit system for superior comfort and security, and the Blendr mount system for light and camera integration. Construction In molded composite and paste under the of the previous spec > SPECS