I think these are great, but never worn as shown in the picture. I think the fastening clip should be at the back of the rider, that way if it ever snapped or wasn't fully fastened the pillion would then fall into the back of the rider instead of off the bike. In the twenty years I've been riding and giving lots of pillion rides I've come to the conclusion size and weight don't really matter much. I've had heavy pillions (i.e 20 stone) that I couldn't even tell were there and I've had 10 stone pillions that were a nightmare. I always tell passengers never to lean and to stay perpendicular in relation to the bike. By doing this they are more like a piece of luggage and so I can compensate for the extra weight. When I was younger the one thing I always wanted to do was impress my passenger, and so I'd cane it everywhere, this usually resulted in them never wanting to be a passenger again. What I noticed with experience though, was its not how fast you go or how fast you accelerate that scares them, its how fast you take the bends. I've had plenty of inexperienced passengers who loved their first pillion ride on the back of my bike even though it was high speed and I accelerated as fast as it would go, I just take it real easy on the corners for them. I also cut out all the wheelies too