{"product_id":"us-local-shippingbafang-bbs02b-48v-750w-mid-motor-kit-500w-complete-set-8fun-ebike-cycling-kit-68mm-100mm-electric-bike-conversion-kit-e-bike-central-motor-engine-with-optional-display-speed-sensor-for-mountain-bike-fat-bik","title":"BAFANG BBS02B 48V 500W 750W Mid-Drive E-Bike Conversion Kit","description":"\u003cp\u003e\u003cstrong\u003eBrushless Central Motor Conversion Kit for Mountain, Fat-Tire, City \u0026amp; Commuter Bikes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUpgrade a compatible bicycle with a genuine \u003cstrong\u003eBAFANG BBS02B mid-drive motor conversion kit\u003c\/strong\u003e. Available in \u003cstrong\u003e48V 500W and 48V 750W configurations\u003c\/strong\u003e, the BBS02B is designed to provide electric assistance through the bicycle's existing drivetrain.\u003c\/p\u003e\n\u003cp\u003eThe mid-drive motor sits centrally around the bottom bracket, allowing the bicycle's gears to work with the motor for a versatile riding setup. The system supports \u003cstrong\u003eE-Bike, Pedal Assist and normal bicycle riding modes\u003c\/strong\u003e, with up to 9 levels of pedal assistance depending on the selected configuration.\u003c\/p\u003e\n\u003cp\u003eThe kit includes the BAFANG motor, display, speed sensor, chainring, wiring harness, thumb throttle, brake levers and installation hardware. \u003cstrong\u003eBattery is not included and must be purchased separately.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eGeneral Details\u003c\/h2\u003e\n\u003cp\u003e• \u003cstrong\u003eBrand:\u003c\/strong\u003e BAFANG\u003cbr\u003e• \u003cstrong\u003eModel:\u003c\/strong\u003e BBS02B\u003cbr\u003e• \u003cstrong\u003eBAFANG Models:\u003c\/strong\u003e G340.500 \/ G340.750\u003cbr\u003e• \u003cstrong\u003eProduct Type:\u003c\/strong\u003e Mid-Drive E-Bike Conversion Kit\u003cbr\u003e• \u003cstrong\u003eVoltage:\u003c\/strong\u003e 48V\u003cbr\u003e• \u003cstrong\u003ePower Options:\u003c\/strong\u003e 500W \/ 750W\u003cbr\u003e• \u003cstrong\u003eMotor Type:\u003c\/strong\u003e Brushless Mid-Drive\u003cbr\u003e• \u003cstrong\u003eDrive Position:\u003c\/strong\u003e Central \/ Mid-Drive\u003cbr\u003e• \u003cstrong\u003ePAS Sensor:\u003c\/strong\u003e Speed Sensor\u003cbr\u003e• \u003cstrong\u003eReduction Ratio:\u003c\/strong\u003e 1:21.9\u003cbr\u003e• \u003cstrong\u003eEfficiency:\u003c\/strong\u003e Over 78%\u003cbr\u003e• \u003cstrong\u003eWater Resistance:\u003c\/strong\u003e IPX5\u003cbr\u003e• \u003cstrong\u003eMotor Operating Temperature:\u003c\/strong\u003e -20°C to 45°C\u003cbr\u003e• \u003cstrong\u003eDisplay Operating Temperature:\u003c\/strong\u003e -20°C to 80°C\u003c\/p\u003e\n\u003ch2\u003eMotor Options\u003c\/h2\u003e\n\u003ch3\u003e48V 500W BBS02B\u003c\/h3\u003e\n\u003cp\u003eThe 500W configuration provides a balanced option for commuting, touring, city riding and moderate off-road use.\u003c\/p\u003e\n\u003cp\u003e• \u003cstrong\u003eVoltage:\u003c\/strong\u003e 48V\u003cbr\u003e• \u003cstrong\u003eRated Power:\u003c\/strong\u003e 500W\u003cbr\u003e• \u003cstrong\u003eMaximum Stated Torque:\u003c\/strong\u003e Up to 100N·m\u003cbr\u003e• \u003cstrong\u003eBottom Bracket:\u003c\/strong\u003e 68-73mm\u003cbr\u003e• \u003cstrong\u003eMotor Model:\u003c\/strong\u003e BBS02B \/ G340.500\u003cbr\u003e• \u003cstrong\u003eStandard Chainring:\u003c\/strong\u003e 44T\u003cbr\u003e• \u003cstrong\u003eOptional Chainrings:\u003c\/strong\u003e 36T \/ 42T, depending on selection\u003c\/p\u003e\n\u003ch3\u003e48V 750W BBS02B\u003c\/h3\u003e\n\u003cp\u003eThe 750W configuration provides additional motor assistance and torque for riders who require stronger performance for hills, touring and off-road riding.\u003c\/p\u003e\n\u003cp\u003e• \u003cstrong\u003eVoltage:\u003c\/strong\u003e 48V\u003cbr\u003e• \u003cstrong\u003eRated Power:\u003c\/strong\u003e 750W\u003cbr\u003e• \u003cstrong\u003eMaximum Stated Torque:\u003c\/strong\u003e Up to 120N·m\u003cbr\u003e• \u003cstrong\u003eBottom Bracket:\u003c\/strong\u003e 68-73mm or approximately 89-105mm depending on selected configuration\u003cbr\u003e• \u003cstrong\u003eMotor Model:\u003c\/strong\u003e BBS02B \/ G340.750\u003cbr\u003e• \u003cstrong\u003eStandard Chainring:\u003c\/strong\u003e 44T\u003cbr\u003e• \u003cstrong\u003eOptional Chainrings:\u003c\/strong\u003e 36T \/ 42T, depending on selection\u003c\/p\u003e\n\u003ch2\u003eMid-Drive Performance\u003c\/h2\u003e\n\u003cp\u003eThe BBS02B transfers motor power through the bicycle's existing drivetrain rather than driving the rear wheel directly. This allows the rider to use the bicycle's gearing while receiving electric assistance.\u003c\/p\u003e\n\u003cp\u003eThe system supports three primary riding modes:\u003c\/p\u003e\n\u003cp\u003e• \u003cstrong\u003eE-Bike Mode:\u003c\/strong\u003e Motor assistance controlled through the supplied thumb throttle\u003cbr\u003e• \u003cstrong\u003ePedal Assist:\u003c\/strong\u003e Motor assistance while pedalling, with up to 9 assistance levels\u003cbr\u003e• \u003cstrong\u003eNormal Bike Mode:\u003c\/strong\u003e Motor switched off for conventional unassisted riding\u003c\/p\u003e\n\u003cp\u003eActual range and performance depend on factors including battery capacity, rider weight, terrain, gearing, riding conditions and assistance level.\u003c\/p\u003e\n\u003ch2\u003eBottom-Bracket Compatibility\u003c\/h2\u003e\n\u003cp\u003eCorrect bottom-bracket compatibility is essential before ordering.\u003c\/p\u003e\n\u003cp\u003eThe BBS02B is designed for bicycles with compatible \u003cstrong\u003ethreaded BSA-style bottom brackets\u003c\/strong\u003e and an internal diameter of approximately \u003cstrong\u003e33.5-36mm\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAvailable configurations include:\u003c\/p\u003e\n\u003cp\u003e• \u003cstrong\u003e68mm Version:\u003c\/strong\u003e Suitable for approximately 68-73mm bottom brackets\u003cbr\u003e• \u003cstrong\u003e100mm Version:\u003c\/strong\u003e Suitable for approximately 89-105mm bottom brackets\u003c\/p\u003e\n\u003cp\u003eThe bottom-bracket shell wall thickness should be \u003cstrong\u003eT ≤ 12mm\u003c\/strong\u003e for proper installation.\u003c\/p\u003e\n\u003cp\u003eMinimum chainstay clearance should be approximately \u003cstrong\u003e40mm\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2\u003eBicycle Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe BBS02B conversion kit can be suitable for a wide range of compatible bicycles.\u003c\/p\u003e\n\u003cp\u003ePotential applications include:\u003c\/p\u003e\n\u003cp\u003e• Mountain bikes\u003cbr\u003e• Fat-tire bikes\u003cbr\u003e• Road bikes\u003cbr\u003e• Hybrid bikes\u003cbr\u003e• City bikes\u003cbr\u003e• Commuter bikes\u003cbr\u003e• Touring bikes\u003cbr\u003e• Cargo bikes\u003cbr\u003e• E-tricycles and other compatible bicycle configurations\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNot recommended for carbon-fibre frames or coaster-brake bicycles.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAlways measure your bicycle's bottom-bracket width, internal diameter, shell thickness and available chainstay clearance before ordering.\u003c\/p\u003e\n\u003ch2\u003eDisplay Options\u003c\/h2\u003e\n\u003cp\u003eThe kit can be supplied with different compatible BAFANG displays depending on the selected configuration.\u003c\/p\u003e\n\u003cp\u003eAvailable display options include:\u003c\/p\u003e\n\u003cp\u003e• VD18MT\u003cbr\u003e• VD04\u003cbr\u003e• VD618\u003cbr\u003e• VD03\u003cbr\u003e• DP C080.C\u003cbr\u003e• DPC010CN\u003cbr\u003e• EKD01\u003c\/p\u003e\n\u003cp\u003eThe exact display supplied depends on the option selected when ordering.\u003c\/p\u003e\n\u003ch2\u003eChainring Options\u003c\/h2\u003e\n\u003cp\u003eThe BBS02B kit is supplied with a \u003cstrong\u003e44T chainring as standard\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAlternative chainrings may be selected depending on the configuration:\u003c\/p\u003e\n\u003cp\u003e• \u003cstrong\u003eStandard:\u003c\/strong\u003e 44T\u003cbr\u003e• \u003cstrong\u003eOptional:\u003c\/strong\u003e 36T \/ 42T\u003c\/p\u003e\n\u003cp\u003ePlease select the required configuration when ordering.\u003c\/p\u003e\n\u003ch2\u003eInstallation\u003c\/h2\u003e\n\u003cp\u003eThe BBS02B replaces the bicycle's existing bottom-bracket and crank assembly with the supplied mid-drive motor.\u003c\/p\u003e\n\u003cp\u003eInstallation involves removing the existing crankset and bottom-bracket components, installing the motor and chainring, and connecting the display, speed sensor, throttle, brake controls and wiring harness.\u003c\/p\u003e\n\u003cp\u003eThe kit includes an installation tool set and locking nuts.\u003c\/p\u003e\n\u003cp\u003eProfessional installation is recommended if you are not experienced with bicycle drivetrain and electrical system installation.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cp\u003e• Genuine BAFANG BBS02B mid-drive motor\u003cbr\u003e• 48V electrical system\u003cbr\u003e• 500W \/ 750W power options\u003cbr\u003e• Brushless motor construction\u003cbr\u003e• Central mid-drive positioning\u003cbr\u003e• Up to 100N·m stated torque on 500W version\u003cbr\u003e• Up to 120N·m stated torque on 750W version\u003cbr\u003e• Speed-sensor pedal assist\u003cbr\u003e• Up to 9 pedal-assistance levels\u003cbr\u003e• E-Bike, Pedal Assist and normal riding modes\u003cbr\u003e• Multiple display options\u003cbr\u003e• 44T standard chainring\u003cbr\u003e• 36T \/ 42T optional chainrings\u003cbr\u003e• 68-73mm and 89-105mm bottom-bracket configurations\u003cbr\u003e• IPX5 water-resistance rating\u003cbr\u003e• Thumb throttle\u003cbr\u003e• Brake levers included\u003cbr\u003e• Installation hardware included\u003cbr\u003e• Battery purchased separately\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cp\u003e• \u003cstrong\u003eBrand:\u003c\/strong\u003e BAFANG\u003cbr\u003e• \u003cstrong\u003eMotor Model:\u003c\/strong\u003e BBS02B\u003cbr\u003e• \u003cstrong\u003eBAFANG Models:\u003c\/strong\u003e G340.500 \/ G340.750\u003cbr\u003e• \u003cstrong\u003eVoltage:\u003c\/strong\u003e 48V\u003cbr\u003e• \u003cstrong\u003ePower Options:\u003c\/strong\u003e 500W \/ 750W\u003cbr\u003e• \u003cstrong\u003eMotor Type:\u003c\/strong\u003e Brushless\u003cbr\u003e• \u003cstrong\u003eDrive Type:\u003c\/strong\u003e Mid-Drive\u003cbr\u003e• \u003cstrong\u003eReduction Ratio:\u003c\/strong\u003e 1:21.9\u003cbr\u003e• \u003cstrong\u003eEfficiency:\u003c\/strong\u003e \u0026gt;78%\u003cbr\u003e• \u003cstrong\u003ePAS Type:\u003c\/strong\u003e Speed Sensor\u003cbr\u003e• \u003cstrong\u003eWaterproof Rating:\u003c\/strong\u003e IPX5\u003cbr\u003e• \u003cstrong\u003eMotor Operating Temperature:\u003c\/strong\u003e -20°C to 45°C\u003cbr\u003e• \u003cstrong\u003eDisplay Operating Temperature:\u003c\/strong\u003e -20°C to 80°C\u003cbr\u003e• \u003cstrong\u003eBottom Bracket Options:\u003c\/strong\u003e 68-73mm \/ 89-105mm\u003cbr\u003e• \u003cstrong\u003eBottom Bracket Internal Diameter:\u003c\/strong\u003e Approx. 33.5-36mm\u003cbr\u003e• \u003cstrong\u003eMaximum Shell Wall Thickness:\u003c\/strong\u003e T ≤ 12mm\u003cbr\u003e• \u003cstrong\u003eMinimum Chainstay Clearance:\u003c\/strong\u003e ≥40mm\u003cbr\u003e• \u003cstrong\u003eStandard Chainring:\u003c\/strong\u003e 44T\u003cbr\u003e• \u003cstrong\u003eOptional Chainrings:\u003c\/strong\u003e 36T \/ 42T\u003cbr\u003e• \u003cstrong\u003eBattery:\u003c\/strong\u003e Not included\u003c\/p\u003e\n\u003ch2\u003ePackage Includes\u003c\/h2\u003e\n\u003cp\u003e• 1 × BAFANG BBS02B Mid-Drive Motor Unit, according to selected configuration\u003cbr\u003e• 1 × Display, according to selected configuration\u003cbr\u003e• 1 × Speed Sensor with Magnet\u003cbr\u003e• 1 × 44T Chainring\u003cbr\u003e• 1 × Wiring Harness\u003cbr\u003e• 1 × 1T4 Connector Cable\u003cbr\u003e• 1 × Thumb Throttle\u003cbr\u003e• 1 × Pair of Brake Levers\u003cbr\u003e• 1 × Installation Tool Set\u003cbr\u003e• Locking Nuts and Installation Hardware\u003cbr\u003e• 1 × 36V 250W Sticker\u003cbr\u003e• 1 × User Manual\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBattery is not included and must be purchased separately.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eImportant Notes\u003c\/h2\u003e\n\u003cp\u003ePlease carefully check your bicycle's \u003cstrong\u003ebottom-bracket width, internal diameter, shell thickness and chainstay clearance\u003c\/strong\u003e before ordering. The motor must be compatible with the bicycle frame for safe installation.\u003c\/p\u003e\n\u003cp\u003eThe 500W and 750W configurations have different performance characteristics. Actual output, range and riding performance depend on battery capacity, controller settings, rider weight, terrain, gearing and other conditions.\u003c\/p\u003e\n\u003cp\u003eThe supplied \u003cstrong\u003e36V 250W sticker\u003c\/strong\u003e is included according to the supplier specification. This does not change the actual motor rating or electrical specifications of the selected kit.\u003c\/p\u003e\n\u003cp\u003eThe kit is intended for installation on compatible bicycles. Local regulations may restrict permitted motor power, speed, throttle use or other characteristics of electric bicycles. Check the applicable laws before installation and use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBattery must be purchased and shipped separately. 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