BAFANG BBS02B 48V 750W Mid Drive Kit for 68MM Bottom Bracket, 8Fun Electric Bike Mid Mount Motor with 500C Display & 36T Chainring, eBike Conversion for Mountain Road Commuter Bicycle (NO Battery) - AJJ 48V750W 36T 500C CA

• 🚵 [ MOTOR COMPATIBILITY ] The BAFANG 750W mid drive kit with 120N.M maximum torque is compatible with JIS bottom bracket measuring 68-73mm or 100mm (in length) and 33.5-36mm (inner diameter). It is best suited for bikes with gear speeds ≤ 9, when speeds > 9 , please ask us for 42T offset chainring . If you are unsure whether the BBS02B bike motor kit will fit, please send us pictures of your bottom bracket and we will assist you. **For 68-73mm, choose BB68mm. For 90-100mm, choose BB100mm. 🚵 [ RIDING MODE ] The BAFANG BBS02B 48V 750W mid motor allows you to reach speeds up to 50KMH (for a 27.5" ebike). Enjoy the convenience of a thumb throttle , allowing you to ride by simply turning it. Alternatively, you can ride the bike using pedal assist mode without the need for the throttle 🚵 [ CHAINRING ] To use the BAFANG mid drive kit , your current chainring needs to be replaced with a BAFANG chainring . We offer 36T 42T 44T 46T and 52T chainring . When converting your bike with a mid mounted ebike conversion kit , the size of the chainring won't significantly impact the riding speed as the motor provides ample power , and you can adjust the speed through the PAS levels . For ease, we recommend choosing a chainring with the same number of teeth as your original one 🚵 [ BRAKE LEVERS OR BRAKE SENSORS ] If you prefer to keep your existing hydraulic or mechanical brakes , brake sensors are essential. Once you've made the purchase, please provide us with your order ID, and we will promptly send you the required brake sensors along with the electric bike kit 🚵 [ FAST & PROFESSIONAL & KIND ] In the rare event of inventory issues, we'll notify you promptly, so please keep an eye on your Amazon inbox. Our North American after-sales service ensures outstanding technical support and maintenance. Rest assured with our one-year warranty on motor kits . Shop with confidence 🚵 [ GEAR SHIFT SENSOR ] Not included. Enhance your cycling experience with our recommended gear shift sensor , designed to make gear shifting effortless. Simply search for B0998ZGTN2 on Amazon to order yours today 🚵 [ BATTERY ] Not included. Choose from our range of high-quality batteries : down tube shark battery , rear rack battery , and triangle battery . To purchase a battery from our store, simply search for B0BPBZTW4G on Amazon and place your order 🚵[ CUSTOMIZED SERVICE ] If you have any special requirements or requests for your order, don't hesitate to let us know. We are more than willing to accommodate your needs. Remember, effective communication can make a significant difference