Reversible valve head fits both Presta and Schrader valves

high-performance junior race in a race-inspired 97mm fit

Sizes in Mondo

IMPACT PROTECTION: Backed by decades of innovation

Structured Surface

Bontrager Circuit MIPS Helmet bikes__women Reversible valve head fits bothHit 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