YVY C20 E-MTB 20" Fat Tire Electric Bike 15Ah/20Ah/40Ah E-Mountain Bike 7 Speed
Q20 Lite (YVY C20 Lite) Q20 Standard (YVY C20 ) Q20 Pro (YVY C20 Pro ) high speed Dual motor + 40AH battery. high speed motor + 20AH battery. high speed motor + 15AH battery. Battery: 48V 20Ah lithium-ion (removable, lockable).