I purchased the mirror extenders for my gsx-s-1000 from evotech, when they arrived the first thing that I noticed was the build quality, they are top notch and really inspire confidence,I got them fitted yesterday and they have improved my riding experience so much, before I couldn’t see behind me at all, with the extensions now lifting the mirrors up a touch and out a touch I can now clearly see what’s going on behind me to the left and the right, therefore helping me to stay and ride safe ,so I’m very happy with my purchase and I would have no hesitation whatsoever in recommending this item and evotech to anyone else.