The XLC MR-S03 Lock is for Haibike/Winora/Koga models with ModularRailSystem.The MRS-system enables quick and easy mounting of different mounting parts to the bike. The MR-S03 is low weight and its astonishing flexibility make The rail lock a popularsecurity solution. Optionally available in simultaneous locking versions with battery and various plug-in cables. The MR-S04 has a Abus Plus cylinder and can be firmly mounted to the MRS with the incl. mounting material. In case of delivery with 2 locking cylinders, the cylinder mounted to the bike needs to be replaced.