Hi
Just wanted to share with you that I also bought the Grand Canyon 29 AL 8.9 with the DT Swiss XMM 100 single shot and the bushings have also gone loose in the way that they rotate when i tightening the axle. They do not come entirely loose so that they fall out but that they rotate is not good…
I am a mechanical engineer myself with special knowledge on interface cracks and know something about where to use and where not to use adhesive bonds/glue assembly. This is in every way a bad solution! The should only be used in low shear stress areas. This is a high stress area – high shear stress when tightening the axle and high normal stress during riding with large cyclic loads.
The glue is only used to keep the right angular position of the bushings and that is why i think there will not be a problem during riding as long as they have the right position after tightening the axle.
Since there is some you that have the same bike I was wondering if you also have a problem with play and large noises from the headset?
Other then that I love the bike! 🙂