own an f650gs not the xchallenge but has same gear box. bmw's are brutal for clunky stiff boxes. mine can be heard by all other riders with me, that is when we riding along and in towns they can hear the clunk up and down on their bikes
its normal for bmw's so dont worry its just they way the beast is built
women are like clouds.......
once they fuck off it is a really nice day.......