The AK802 Rixen & Kaul Quad Adapter allows for a secure and stable mounting of items such as accessories and lights on handlebars, frames, stems or seat posts with diameters from 15-60mm. Its robust design ensures long lasting use and reliable performance in all riding conditions. Unifit Mounting: patented adapter mounting system with stainless steel strap. Dimensions (height x length x width): 2.5cm x 4.4cm x 4.5cm Weight: 30 g Max load/loading: 1 kg max.