First off let me say this I have a chinese atv a pentroa 200 efi good bike for a bit but engine was garbage broke 2 times 3rd bent the crankshaft can't find shit for this bike at all 176cc engine . Ok now I e mail.bdx performance cause I came across there site this lady named May responded in like I day which was great I sent er pics of the bike and she responded quickly . All said and doe we agreed that a kandi 200 would fit the bike . Motor was shipped arrived on time but as soon as I loom at it I knew it wasn't gonna work . That's ok not therebfault at all both patires made a mistake. May went above and beyond to help me resolve the problem after. Speaking with the tech we both agreed that the motor wouldn't fit im.in the process to return the motor when i get the shipping label . Great company very helpful werenboyh kinda disappointed the motor didn't fit bu hey its all good for another day . These guys are great gor rebuilds and parts great atmosphere when you call someone always has a answer for you very nice people and company Mayne in the future I will buy from them again . One again thank you bdx for all the help .