The Rixen & Kaul Distance Adapter 43mm (OEM Packaged) is a bicycle accessory designed to be used with Rixen & Kaul's racktime adapter system. The distance adapter is packaged for OEM use, which means it is intended to be sold as part of a complete bicycle rather than as an aftermarket accessory. The distance adapter is made from sturdy aluminum and is designed to be used with bicycles that have a frame with a seatstay distance of 43mm. It is used to adjust the distance between the seatstays, allowing the racktime adapter to be mounted securely on the bicycle.