Just returned from a nice 5h roundtrip through the swiss / german border region with my new Three-wheeler. Unfortunately while driving a 180 degree curve I heard a harsh metallic "dang" noise. From then on, while accelerating you could hear a ting-ting-ting noise about the wheel frequency. A little later I was able to access some tools, removed the rear wheel cover and immediately identified the cause of the insane noise. While driving the turn the front wheel threw a little stone directly into the belt and the rear pulley hammered it right through the belt. Ups - not good. I was able to surgically remove the object from the belt, but I think the belt has to be exchanged during the first service.
M3W willow green,Triumph T100,KTM LC4 Adv./Freer.250R, RD250/RS125DX, Alpine A110 Kurt