OB-EG304 Carbon E-gravel Bike Frame with Bafang M820

OB-EM303 Bafang E-MTB frame, Carbon E-MTB Frame, Carbon Super Light E-MTB frame

OB-EBG302： Carbon Mahle X30X35 bike motion frame，rear motor gravel bike frame, E-gravel Bike Frame

OB-EBR301：Carbon ebike frame，E-motion frame,mahle X20 ebike frame, rear motor road bike frame,e-road bike frame