My advice, if buying a Tracer to use with panniers, Get the GT and the Yamaha system. My dealings with Givi and Amy have been nothing short of appalling. I've emailed, phoned, sent videos, photo's detailing the problem and how to correct the issue. There customer is nil. When I enquired which system I needed, they couldn't of been more helpful so purchased on there advice. Since I've been fobbed off, ignored and gone round in circles being asked the same questions over again with no resolution.. Awful service from uncaring staff. Certainly , No recommendations from me