Amber IV This lightweight bike carrier is designed for transporting four bicycles. The Amber IV is easy to mount on the tow bar thanks to its patented quick-release coupling. Bikes are securely mounted on this bike carrier in wide, stable plastic wheel holders. The frame mounting prevents any strain on the bike's crankset. The lighting is operated via a combined 7/13-pin (Jaeger) connector, including rear fog lights and reversing lights (via a 13-pin connector). The trunk remains accessible thanks to the easy-to-operate tilt mechanism, and the bike carrier is lockable with a padlock.