Its a Bafang BBSHD mid drive motor (for 68mm bottom bracket) standad bike frame fit all accessories are included complete kit to convert your own bike into an ebike screen included also no battery you will need a 48v or a 52v battery it does have the red lekkie back plate on 1 tooth had broke off the cog see pictures. it does not effect at all but you can buy cogs off ebay for cheap if it does bother you
eBay