Supported Models Vento Phantom, SUNL Several Models, Various unlisted makes/models, Tank Several Models, Baja, Schwinn, GY6 QMI/QMJ 152/157, Kazuma, Tank, Vento Several Models, Vento Phantom, SUNL Several Models, Various unlisted makes/models, Tank Several Models, Strada, Wildfire, Baron, Diamo, Boss, Roketa Several Models, Terminator, Baja 150 ATV, Baja Storm 125, Baja SC125, Baja, Honda, Schwinn, Boreem (BMS), Kazuma, Tank Classic-150/150T-12, Tank Courier-150/150T-2A, Tank Racer-150/150T-7, Tank Racer-150DE /150T-7A, Tank Racer-150DS/150T-7B, CFMoto, Kymco MXer 150, Kymco MXU 150, Redcat, Baja SC150, Kymco, Piaggio, Bashan, Avanti, Dotera, PGO, Vento Avalanche II 05'-07', Vento Avalanche 04', Vento Avalanche GT5 07', Baotian, Avanti Epsilon 150, Avanti Beta 150, Vento Sauron, BKM Sauron and many more. * There are several types of GY6 Cylinders not all are the same please look at picture at pattern and bolds * Only MRP takes the time to analyze all the different patters on GY6 engines this is one of three versions in US market * GY6 Air 150cc 58mm stock * Cylinder 150cc GY6 4-stroke QMI157 QMJ157 engines.