Specific pannier holder PL ONE-FIT for Trekker Outback MONOKEY® CAM-SIDE configuration 18 mm diameter / the case holder does not interfere with the rear indicators, but the indicators must be moved using the supports included in the package in order to guarantee the 80° of illumination required by the rules of the road / it can be mounted without the specific rear rack 1121FZ or SR1171 using the 1121KIT / not compatible with GRT709, GRT709B, GRT725