well most of the people already stated it's pro and cons, but with the performance that we are getting from our X9 the wear out rate is definitely faster than any other kind.
but if we do maintainence regularly you will not need to spend too much on the bike unless you have some accident or you drop your bike the mirror brole.I hope that they will continue selling the X9 evo series, but maybe do some changes to for example is there any thing that can be done to reduce the wear and tear rate.