Driving distance is prox. 40km on flat surface, single motor. Constant up hill using dual motors in weather 25- 30C it will stop multiple times. Motor and battery was on touch warmer. Had to stop, restart it after two or more minutes. There is on front steering neck a movement clearance, no adjustment. Rear wheel fork is to 20mm to wide, that why was striped thread on axle and nut...from assembly.