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The price you see is the final price. Free repair or replacement in case of any quality issues. Upgrade: Experience enhanced performance with the upgraded IRFB3077 mosfets controller. Four Riding Modes: Choose from pure electric mode, human riding model, power assistance, and push models. Enjoy the flexibility of easily switching between 4 working modes. Easy Installation: Effortlessly install this mid-drive motor into your electric bicycle using just a few tools. Remove the crankset and center shaft, then use the provided installation tools for a seamless setup. Compatibility: This kit is compatible with a wide range of bikes, including mountain bikes, road bikes, racing bikes, and more, with a bottom bracket size of 68-73mm. 36V250W Mid Drive Motor Specification. Bafang Model: M315 MM G340.250. Max Speed with Pedal Assistance: 30.5km/h. No Load Speed (RPM): 83±7. Load Speed (RPM): 78±7. PAS Sensor: Speed Sensor. Reduction Ratio: 1 : 21.9. Motor Operation Temperature: -20? -45? Bafang Controller: Integrated Inside the Motor. Bracket Bottom Length: 68mm (The bottom bracket shall be 68-73mm). Net Motor Weight: 4.3kg. 1 Mid Drive Motor. 1 Pair 44T Chainwheel (Default). 1 Set Thumb Throttle. 1 Set Speed Sensor. 1 4 to 1 Cable. 1 6V Headlight (Free). 1 Wrench Tool (Free). 2 36V250W Stickers (Free). If you choose the battery option, it comes with a charger. If you choose “no battery, ” please note that the motor kit does not include a battery. Note: Gear shift sensor is not included. Q: How do I know if this mid-drive motor will fit my bike? A: This 68mm mid-drive motor is compatible with bikes having a bottom bracket width of 68mm (2.68 inches) to 73mm (2.87 inches). 100mm mid-drive motor is compatible with bikes having a bottom bracket width of 89-105mm. The inner diameter of the bracket should be 34-36mm. Q: How do I choose between brake levers and brake sensors? A: If you have hydraulic brakes or prefer to use your own brake sensors, you can choose brake sensors. They can connect directly with your brakes for seamless functionality. Q: Can I install the motor as soon as it arrives? A: Before installation, please follow the steps in the manual to test the motor’s functionality. We are specialized in manufacturing electric bike parts, such us Mid motors, Hub Motors, lithium batteries, and DIY conversion kits. We has a good cooperative relation with BAFANG company. All the items we sell are 100% genuine and authorized. With an experienced and professional team, we have exported our products to many countries and regions around the world, especially America and Europe. Our products enjoy a good reputation among our customers. We make sure all of our items are brand new and in excellent condition before dispatch. We are willing to satisfy all customers. We are willing to respond to your inquiry in 24 hours usually. Your recognition is our motivation in developing our small company and improving our service for each customer. Our aim is to provide Level Customer Service. Your recognition will encourage us greatly and serve you better. We strive to keep all our customers satisfied. 48V BAFANG Mid Drive Motor BBS02B 68mm Ebike Electric Bicycle Conversion kit. Bafang 48V500W Rear Wheel Hub Motor Disc Brake Electric Bike for Cassette DC Kit. Bafang Rear Hub Motor 48V 26″ 27.5″700C Cassette Disc Brake Conversion Kit. 48V Bafang Motor BBSHD BBS03 Electric Bicycle Conversion Kits DIY Ebike. Bafang Display BAFANG Mid Drive Motor/ Hub Motor Bicycle screen T1 touch eBike. EBike Brake Sensor For BAFANG BBS01 BBS02 BBSHD Motor Power Cut Off Brake Levers.