I just got the GIVI topbox installed (by my son). The idea of me drilling into the plastic caused fantasies of too many "practice holes", wandering drill bits, etc. I opted for the black box with silver trim which I think looks nice on the silver bike. I went with the box that has the tail/brake lights option. The easy on easy off feature is preserved by ingenious contact plates on the box and on the rack so that there is nothing to unplug or to remember to plug back in when moving the topbox. Plus, the wiring is tied into the brake light flasher so that first the brake lights flash, then the topbox lights flash, then back to the brakelights, etc. Makes quite a spectacle (which is the whole point, I guess, when you want to wake up the dozing driver behind that you are decelerating.) All in all I am very satisfied.