I considering my first ebike and am very intrigued with fat tire bikes (really like the looks of the Radrover). I have a Specialized hybrid bike that I ride mostly on concrete, but once a year I go on a 3 day crushed rock ride. I want to start riding more dirt/crushed rock trails and at age 64 and 265 lbs will need some help uphill. However, I'll still probably still ride primarily on the streets. I have some neck and shoulder issues and am wondering if I would be better off with the Radcity. Does anyone ride the Radcity on dirt or crushed rock trails?