BAFANG BBS02B Mid Drive Kit : 48V 750W BBS02 Mid Motor with P860C Display 44T Chainring & 48V 20Ah Shark Battery, Electirc Bike Conversion Kit for BB 68 73 mm, 8fun Ebike Central Mounted Engine

• 🚴[ KIND NOTE BEFORE PURCHASE ] ①There are 750W and 1000W mid motor for you to choose. If you are not sure the compatibility , please feel free to ask us. ②There are more chainring options not listed. If you want to exchange your chainring to other size , please send us your order ID once you place an order. ③If you order a BBSHD mid drive kit without battery , we will send you 52V version default. Please message us if you want to exchange it to 48V 🚴[ COMPATIBILITY ] BBS02B 750W and BBSHD 1000W mid motor are compatible with 68-73mm ( length ) and 34-36mm (internal diameter ) JIS standard bottom bracket . It can be installed on different bikes , such as mountain bike , road bike , commuter bike ,etc. It isn't recommend mounting it on the bikes with costaer brakes . **Motor for different sized bottom bracket : *750W 100mm : B099Z8Y6QN *1000W 100mm : B09BN6WXZ5 *1000W 120mm : B09BN899PN 🚴[ LARGE CAPACITY BATTERY ] There are various models of batteries with charger . The shark battery is mounted on the down tube , and the rear rack is included if you order a rear battery . They are both of premium quality , you can learn what cells the battery adopts on the product image 🚴[ POWERFUL MOTOR ] BAFANG 750W 1000W mid motor are high-performing , lightweight and fast electric bike conversion kits . The motor with super power is really suitable for hill-climbing . It offers both throttle and pedal assist power , you can choose the mode that you prefer to. You can use the throttle if you want to take a break from pedaling . And the motor has a surprising amount of torque so that you can ride very fast up to 50MPH 🚴[ PACKING LIST ] A mid motor , a battery (if you order it together), a display (optional), a chainring , speed sensor , brake levers or brake sensors , cranks , a 1T4 EB-BUS cable , a thumb throttle , lock nuts , basic installation tools , headlight , gloves . When you find a part is missing in the box , please do not worry about that. Just email us , we will help you figure it out. Prepared everything you need , just place an order and enjoy the flying ride now 🚴[ GLOBAL WAREHOUSE & CUSTOMER SERVICE ] We have US EU CA AU CN warehouse , you can expect to receive your packges in about 2-7 days. If there is any problem with the inventory, we will send you an email, please keep an eye of your Amazon inbox. Motor & Battery own one-year warranty. We have professional techs in the US that can give you technical support and help you fix the problems . How to contact us on Amazon : Help & Settings - Customer Service