hybrid 314, One could make a case for a moebius belt increasing the wear. If you again take the infamous point "A" it will pass a given pulley the same number of times, the difference is that it alternates sides of the belt in contacxt with the pulley.this results in point "A" flexing in opposite directions with each pass. For a pulley that results in a 90 degree flex a moebius belt instead of 100 90 degree flexes will make 50 flexes one way and 50 the other, esentially making 50, 180 degree flexes. Your guess is as good as mine which causes more wear. I think if it actually was helpful they would be in common use.