BAFANG BBS02B 48V 750W Mid Drive Kit for 68MM Bottom Bracket, 8Fun Electric Bike Mid Mount Motor with P860C Display & 44T Chainring, eBike Conversion for Mountain Road Commuter Bicycle (NO Battery) - AJJ 48V750W 44T P860C CA

• 🚵[ MOTOR COMPATIBILITY ] BAFANG 750W mid drive kit with 120N.M max torque , is compatible with 68-73mm or 100mm (length) and 34-36mm (inner diameter) JIS bottom bracket . It better fits bikes with gear speed ≤ 9, there is risk of chain going off when your bike is ＞9 speed . If you are not sure the BBS02B bike motor kit fit or not, please send us pictures of your bottom bracket and we will help you check. **68-73mm choose BB68mm , 90-100mm choose BB100mm 🚵[ RIDING MODE ] The highest speed of BAFANG BBS02B 48V 750W mid motor can reach 50KMH (for a 27.5" ebike ). A thumb throttle is included to make you ride by turning it. You can also ride the bike with pedal assist mode without using throttle 🚵[ DISPLAY ] The displays differs from interface , size , button , USB port ,etc. You can learn from our product image to decide which electric bike display you prefer to. You can set MPH / KMH per your need 🚵[ CHAINRING ] Your existing chainring needs to be exchanged to BAFANG chainring . There are 36T 44T 46T 48T 52T chainring for BAFANG mid drive kit . When you convert your bike with a mid mounted ebike conversion kit , the size of chainring won't affect much of the riding speed because the motor supports super power and you can set the speed on each PAS levels . The easiest way is choosing the same teeth chainring as your original one. ** 36T chainring is without chain guard 🚵[ BRAKE LEVERS OR BRAKE SENSORS ] When you want to keep your original brakes ( hydraulic / mechanic ), brake sensors are required. Please send us your order ID after purchasing , then we will send you brake sensors with the elctric bike kit 🚵[ GLOBAL STOCK & QUICK CUSTOMER SERVICE ] Delivery will be on time and faster than the ETA on Amazon. If there is any problem with inventory, we will message you, please keep an eye of your Amazon inbox. North American after-sales service , providing techinical support & maintenance . One-year warranty for motor kits . Buy with confidence 🚵[ GEAR SHIFT SENSOR ] Not included. We recommend you use it which makes easy to shift the gear / speed . Please search B0998ZGTN2 on Amazon and order it 🚵[ BATTERY ] Not included. We have down tube shark battery , rear rack battery and triangle battery . If you want to buy a battery from our store , please search B0BPBZTW4G on Amazon and order it 🚵[ CUSTOMIZED SERVICE ] Delivery is faster than the estimated delivery date on Amazon, please disregard that date. Besides, if you have other special demand and request for your order, just feel free to message us and we are willing to go with it . *Remember that communication makes difference.