Specifications:.Material:6061 Aluminum Alloy + EPDM Rubber.Net weight:3.8KG.Dimensions:80cm x 16cm x 24cm.Adhesive force:50-100 kg.Supported weight:50kg.Maximum speed in use:120km/h (depends on weather conditions).Colour:Black.9mm quick release axle.Compatible with other 10mm/15mm/20mm axles (sold separately).For two bicycles.Compatible with any two-wheeled bicycle that allows the front wheel to be released.Temperature of use:-30º to 80º.6 high quality suction cups (4 on support / 2 for rear wheels).High resistance suction cup absorption and fastening.Easy to install, safe to operate and convenient to store.Includes protective carrying bag.CE certification standard ISO 11154-2006.