Ridstar YVY C20 E-MTB 20" Fat Tire Electric Bike 15Ah/20Ah/40Ah E-Mountain Bike
New Ridstar electric bike. Q20 Lite (YVY C20 Lite / Ridstar Q20 Lite) Q20 Standard (YVY C20 / Ridstar Q20) Q20 Pro (YVY C20 Pro / Ridstar Q20 Pro) high speed Dual motor + 40AH battery. high speed motor + 20AH battery.