You are a quick learner @Paul Panait !! Please keep reporting your progress. Can you weigh your wheel -- very interested to see the real weight of the 130Wh version. You report it may be underpowered... perhaps, but for example, when you go from sidewalk to grass, it may also be that you are still learning too that you fell down? Also, a grinding noise seems not good -- other wheels I rode (Ninebot E+, Firewheel, Solowheel classic, Solowheel xtreme) were all basically silent (except for the 'humming' of the BLDC drive). I wonder what it is. Anyway, have fun and be careful in the beginning