have thoroughly occupied myself with various models and their rezenssionen and decided on this one. Delivery was really prompt, so the next day was the tires and the belt already there, just great! the tire is very easy to assemble and you also do not really need a lot of power for simple snap system which can also be good reopen. for my taste it is something very big, but if you have the moves out again, everything is going quite well. habs with and without belt tried now for the first time, could not discover much difference, clearly, without a belt, it is something unpleasant, but does not hurt. I wonder if the training so that really pays off over time :-)