The Uni Adapt headlamp mounts from Petzl allow you to install a headlamp on a helmet without hooks. Enjoy your night rides on your mountain bike. The Uni Adapt is compatible with headlamps TIKKINA, TIKKA, BINDI, ACTIK, ACTIK CORE, SWIFT RL, NAO, NAO +, TACTIKKA, TACTIKKA +, TACTIKKA +RGB, DUO Z2, and DUO S. You have no more excuses for not hitting the trails when the light is low.