PETZL Bike Adapt 2 Unisex, Black, One Size

For mounting on bicycle handlebars or seat post between 20 and 34 mm in diameter Compatible with TIKKINA, TIKKA, TIKKA CORE, ARIA 1 RGB, ARIA 2 RGB, ACTIK, ACTIK CORE (2022 model and later) and SWIFT TL (2023 model and later, reference E095BBxx) headlamps, Weight: 0.09479877266 pounds, Manufacturer: Petzl