Loncin Xwolf 550 Long Version ATV w/499.5cc Motor Fuel Injected 4 Wheeler – Loncin Xwolf 550 Long Version The Loncin Xwolf 550 Long Version ATV w/499.5cc Motor Fuel Injected 4 Wheeler – Loncin Xwolf 550 Long Version has Dual A-arms Front/Re.