The BAFANG Mid-Drive Motor Kit (BBS02B/BBS-HD) is An Ideal Choice for Creating A Custom Electric Bicycle. It Comes with A Wealth of Essential Accessories, Including Brake Levers, Chainrings, Thumb Throttles, Speed Sensors, Headlights, And Bottom Bracket Removal tools. It Also offers Optional Battery And Lcd Display Options, Allowing You to Flexibly Match According to Your Needs And Easily Diy Your Ideal Electric Bike. The Kit Has Strong Compatibility, as Its 750W/1000W Mid-Drive Motor Can Seamlessly Integrate with Bottom Brackets That Are 68-73Mm, 100Mm, Or 120Mm In Length And Have An Inner Diameter of 33.5-36Mm, Meeting Jis Standards (Note: The 73Mm Screws Are Not Included; Contact Us If Needed). Whether It'S A Mountain Bike, Urban Commuter Bike, Or Recumbent Tricycle, as Long as The Bike Has Disc Brakes Or V-Brakes with A Chain Drive, It Will Perfectly Adapt And Significantly Enhance The Riding Experience. The Performance is Equally Impressive, with The Motor Providing Strong torque of 100/120/160N・M. Whether for Urban Commuting Or off-Road Adventures, It Can Handle Various Terrains with Ease, Making Climbing Effortless And Achieving Maximum Speeds of Up to 45Km/H. At The Same Time, It offers Three Modes: Throttle, Pedal assist, And Standard Riding, Tailored to Meet Your Different Riding Needs. In Addition, You Can Personalize Your Choice of Can Protocol Display, with Optional Dz40 500C、DZ40、DPC18、EDK01、P860ML、SW2-M58、DPC010、DPC080、VD03、VD618 Display, Each offering Unique Features to Ensure You Find The Most Suitable Display Device for Your Riding. The Battery Selection is Also Very Flexible; The BAFANG Can Bus Mid-Drive Motor is Not Limited to BAFANG Batteries But is Compatible with Our Provided 48V 13Ah/16Ah/17.5Ah/20Ah Electric Bicycle Batteries (If You Choose The 'No Battery Included' Option, The Battery Will Not Be Included In The Shipment, Please Ensure You Have A Compatible 48V Battery Ready In Advance).