LCD + 48V1500W Hi Speed Electric Bicycle E Bike Hub Motor Conversion Kit 26rear

LCD_48V1500W_Hi_Speed_Electric_Bicycle_E_Bike_Hub_Motor_Conversion_Kit_26rear_01_wp
LCD + 48V1500W Hi Speed Electric Bicycle E Bike Hub Motor Conversion Kit 26rear
LCD + 48V1500W Hi Speed Electric Bicycle E Bike Hub Motor Conversion Kit 26rear
LCD + 48V1500W Hi Speed Electric Bicycle E Bike Hub Motor Conversion Kit 26rear
LCD + 48V1500W Hi Speed Electric Bicycle E Bike Hub Motor Conversion Kit 26rear
LCD + 48V1500W Hi Speed Electric Bicycle E Bike Hub Motor Conversion Kit 26rear
LCD + 48V1500W Hi Speed Electric Bicycle E Bike Hub Motor Conversion Kit 26rear

LCD + 48V1500W Hi Speed Electric Bicycle E Bike Hub Motor Conversion Kit 26rear
LCD + 48V1500W Hi Speed Electric Bicycle E Bike Hub Motor Conversion Kit 26rear. 26 Rear Wheel 48V1500 Watts Brushless Hub Motor Electric Bicycle Conversion Kit. Includes the 48V1500W motorized wheel(26 rear wheel), 35A Max controller, brake lever, PAS, throttle(twist or thumb throttle, please advise), 6 speed gear & SW900 LCD display. Top speed: 70km/h(45mile/h) goes with 26inch wheel(empty load condition). /M, good ability to climb hill. LCD display shows battery power level, time, speed, mileage, gear. Components error checking and report. 1, 48V1500W brushless gearless hub motor. 2, 180 copper winding+ best quality magnet, hub width:135mm for rear wheel. 3, Aluminium bicycle rim, 12g spoke(2.6mm thickness). 4, 48V 35A Max controller, Protect and prolong the life of the battery. 5, Brake lever, shut off the motor when you brake stainless steel disc brake. 6, Suggestion about the battery: 48V20AH. 2, We do not mark merchandise values below value or mark the item as ” gifts” – US and international government regulations prohibit such behavior. 2, if the item is not described or represented in this listing please send it back. 1, We always take customer service seriously and want you to be 100% happy with your shopping experience here. 3, Please contact me before you return it. Are committed to resolve all issues in a friendly and satisfactory manner. The item “LCD + 48V1500W Hi Speed Electric Bicycle E Bike Hub Motor Conversion Kit 26rear” is in sale since Friday, April 29, 2016. This item is in the category “Sporting Goods\Cycling\Bike Components & Parts\Electric Bike Components”. The seller is “sannykung” and is located in Guangzhou. This item can be shipped to all countries in Europe, United States, Japan, Canada, Australia.
  • Type: Conversion Kit
  • Brand: Unbranded
  • MPN: Does Not Apply
  • Country/Region of Manufacture: China

LCD + 48V1500W Hi Speed Electric Bicycle E Bike Hub Motor Conversion Kit 26rear

163 Wheel 48v-96v1500W Electric Bicycle E Bike Motor Kit-Sine Wave controller

163_Wheel_48v_96v1500W_Electric_Bicycle_E_Bike_Motor_Kit_Sine_Wave_controller_01_mric
163 Wheel 48v-96v1500W Electric Bicycle E Bike Motor Kit-Sine Wave controller
163 Wheel 48v-96v1500W Electric Bicycle E Bike Motor Kit-Sine Wave controller
163 Wheel 48v-96v1500W Electric Bicycle E Bike Motor Kit-Sine Wave controller
163 Wheel 48v-96v1500W Electric Bicycle E Bike Motor Kit-Sine Wave controller
163 Wheel 48v-96v1500W Electric Bicycle E Bike Motor Kit-Sine Wave controller

163 Wheel 48v-96v1500W Electric Bicycle E Bike Motor Kit-Sine Wave controller
163 Wheel 48v-96v1500W Electric Bicycle E Bike Motor Kit-Sine Wave controller. 48V-96V1500 Watts Plateful Motor Electric Bicycle Conversion Kit, 16×3.0″ Wheel (12″ plateful motor). 70KM/Hour high speed when reach to 96V. Includes the 16 Wheel plateful motor, sine wave 2000W controller, brake bar, throttle(twist or thumb throttle, please advise). Easy installation, Please download e bike conversion kit install guide. 1, Top speed: 70km/h(43mile/h) if you work to the 96V system. 2, 2000W(18MOZ tube) Sine wave controller(50-70A). The kit does not include the LED or LCD display. A, Sine Wave Controller is more stable, high efficiency, low current consumption & long life. B, Sine Wave Controller support electric lock function. C, Sine Wave Controller support cruise function. D, Sine Wave Controller support regenerative function, charge battery during braking(must use the same brand LCD display together to active this function). 12″ Plateful 1500W motor (16″ wheel). 2, Rated Voltage: 60V, can be 48V, 72V, 96V by using different voltage controller and battery. 3, Rated Power: 1500W. 5, Cable coming out of from the right side of the motor. 6, Brake Type: for Disc brake(the kit does not include the disc brake). 7, 2000W sine wave controller (50-70A); When you choose 48V-72V controller, you can use 48V, 60V or 72V batteries; When you choose 60-96V controller, you can use 60V. 8, Batteries suggestion to work with this motor. The advantage of plateful motor compare to the normal spoke motor. The plateful motor is made of permanent magnetic material with max 320 magnetic flux. The plateful motor use 7 drive channels, 12 transmission combinations, 56 degree of magnetic series, 3pcs of CPV energy saving control module, can increase the motor torque at 30%, reduce energy-comsuming at 10%, increase the driving distance at 1/3, make the motor more powerful and longer drive mileage. It is the combination of power and energy-saving. 2, We do not mark merchandise values below value or mark the item as ” gifts” – US and international government regulations prohibit such behavior. 2, if the item is not described or represented in this listing please send it back. 1, We always take customer service seriously and want you to be 100% happy with your shopping experience here. 3, Please contact me before you return it. Are committed to resolve all issues in a friendly and satisfactory manner. 48v1500W ebike Kit LCD version. The item “163 Wheel 48v-96v1500W Electric Bicycle E Bike Motor Kit-Sine Wave controller” is in sale since Saturday, September 17, 2016. This item is in the category “Sporting Goods\Cycling\Bike Components & Parts\Electric Bike Components”. The seller is “sannykung” and is located in Guangzhou. This item can be shipped to all countries in Europe, United States, Japan, Canada, Australia.
  • Type: Conversion Kit
  • Brand: theebikemotor
  • MPN: Does Not Apply
  • Country/Region of Manufacture: China

163 Wheel 48v-96v1500W Electric Bicycle E Bike Motor Kit-Sine Wave controller

LCD + Disc Brake+3000W Hi Speed Electric Bicycle E Bike Hub Motor Conversion kit

LCD_Disc_Brake_3000W_Hi_Speed_Electric_Bicycle_E_Bike_Hub_Motor_Conversion_kit_01_rbl
LCD + Disc Brake+3000W Hi Speed Electric Bicycle E Bike Hub Motor Conversion kit
LCD + Disc Brake+3000W Hi Speed Electric Bicycle E Bike Hub Motor Conversion kit
LCD + Disc Brake+3000W Hi Speed Electric Bicycle E Bike Hub Motor Conversion kit
LCD + Disc Brake+3000W Hi Speed Electric Bicycle E Bike Hub Motor Conversion kit
LCD + Disc Brake+3000W Hi Speed Electric Bicycle E Bike Hub Motor Conversion kit
LCD + Disc Brake+3000W Hi Speed Electric Bicycle E Bike Hub Motor Conversion kit
LCD + Disc Brake+3000W Hi Speed Electric Bicycle E Bike Hub Motor Conversion kit

LCD + Disc Brake+3000W Hi Speed Electric Bicycle E Bike Hub Motor Conversion kit
LCD + Disc Brake+3000W Hi Speed Electric Bicycle E Bike Hub Motor Conversion kit. 3000 Watts Brushless Hub Motor Electric Bicycle Conversion Kit. Includes the motorized wheel, motor controller, brake lever, throttle, 6 or 7 Speed Gear(Wheel you choose rear wheel, it comes with 6 speed Gear automatically), Disc brake & LCD display. Top speed: 72V3000W-72-80km/h(50mile/h) goes with 26inch wheel; 48V3000W-50-55km/h(35miles/h) goes with 26inch wheel. /M, good ability to climb the hills. 60A Max 24MOZ Tube controller (24MOZ tubes in it). LCD display shows battery power level, time, speed, mileage, gear. Components error checking and report. Disc Brake: For front wheel 160mmDia. Plate; For rear wheel 140mmDia. Extend life time for the brake, much sturdier than V-brakes. 4.0 Fat Rim width: 80mm; 21 motorcycle rim width: 42mm; 3.0 rim width: 46mm. 1, 48V or 72V3000W brushless gearless hub motor. 2, Magnet size: 42mm, hub width:155mm for motorcycle wheel; 155mm for 26×3.0 wheel; 175mm for 4.0 fat wheel. 3, Motorcycle grade rim and spokes(stainless steel) or 4.0 Fat wheel. 4, 60A Max 24MOZ Tube controller, Protect and prolong the life of the battery. 5, Brake lever, shut off the motor when you brake stainless steel disc brake. 6, Suggestion about the battery. 2, We do not mark merchandise values below value or mark the item as ” gifts” – US and international government regulations prohibit such behavior. USA, Canada, Belgium, Danmark, Finland, Greece, Germany, Ireland, Italy, Luxemburg, Malta, Sweden, Portugal, Switzerland, UK, Austria, France, Spain, Australia & New Zealand, Thailand, Singapore, Vietnam. 2, if the item is not described or represented in this listing please send it back. 48v1500W ebike Kit LCD version. The item “LCD + Disc Brake+3000W Hi Speed Electric Bicycle E Bike Hub Motor Conversion kit” is in sale since Monday, September 12, 2016. This item is in the category “Sporting Goods\Cycling\Bike Components & Parts\Electric Bike Components”. The seller is “sannykung” and is located in Guangzhou. This item can be shipped to all countries in Europe, United States, Japan, Canada, Australia.
  • Type: Conversion Kit
  • Brand: theebikemotor
  • MPN: 0710525032270
  • Country/Region of Manufacture: China

LCD + Disc Brake+3000W Hi Speed Electric Bicycle E Bike Hub Motor Conversion kit

EBike Mantra 24v Electric Bike 20 Grey MANUFACTURER REFURBISHED

EBike_Mantra_24v_Electric_Bike_20_Grey_MANUFACTURER_REFURBISHED_01_en
EBike Mantra 24v Electric Bike 20 Grey MANUFACTURER REFURBISHED
EBike Mantra 24v Electric Bike 20 Grey MANUFACTURER REFURBISHED
EBike Mantra 24v Electric Bike 20 Grey MANUFACTURER REFURBISHED
EBike Mantra 24v Electric Bike 20 Grey MANUFACTURER REFURBISHED
EBike Mantra 24v Electric Bike 20 Grey MANUFACTURER REFURBISHED
EBike Mantra 24v Electric Bike 20 Grey MANUFACTURER REFURBISHED
EBike Mantra 24v Electric Bike 20 Grey MANUFACTURER REFURBISHED
EBike Mantra 24v Electric Bike 20 Grey MANUFACTURER REFURBISHED

EBike Mantra 24v Electric Bike 20 Grey MANUFACTURER REFURBISHED
E-Plus Mantra 24v Electric Bike 20 Black. Signs of previous use. Take the strain out of cycling and give yourself an easier cycle journey. The E-Plus electric bike is simple for you to use with no complicated mechanics. Perfect for commuting the bike charges in around 2-3 hours and can travel up to 25 miles on one charge with 3 modes of assisted power. Front alloy V brake and rear alloy V brake brakes. Weight fully assembled 20kg. 26 to 32 inch inside leg measurements. Front and rear mudguards. 20kg in weight means it is easy to carry and store away. Some assembly required – need to fit the front wheel, handlebars etc.. Tyres and tubes are excluded from the guarantee. The item “EBike Mantra 24v Electric Bike 20 Grey MANUFACTURER REFURBISHED” is in sale since Friday, July 6, 2018. This item is in the category “Sporting Goods\Cycling\Electric Bikes”. The seller is “toymonster_co_uk” and is located in Hockley, Essex, SS5 4AD. This item can be shipped to United Kingdom.
  • Gender: Unisex Adult
  • Wheel Size: 20″
  • Model: Mantra
  • Modified Item: No
  • Country/Region of Manufacture: China
  • Custom Bundle: No
  • Suspension: No Suspension
  • Colour: Grey
  • Type: Electric Bike
  • Number of Gears: 1
  • Non-Domestic Product: No
  • Features: Adjustable Seat
  • MPN: EGBIKE83
  • Frame Material: Steel
  • Brand: E-Plus
  • Brake Type: Direct/Linear Pull (V-Brakes)

EBike Mantra 24v Electric Bike 20 Grey MANUFACTURER REFURBISHED

Etropolis Electric Bike Step Through

Etropolis_Electric_Bike_Step_Through_01_noo
Etropolis Electric Bike Step Through
Etropolis Electric Bike Step Through
Etropolis Electric Bike Step Through

Etropolis Electric Bike Step Through
Here at The Electric Bike Shop we are focused on providing best in class Products, Service and Peace of Mind. 36V/13Ah NMC cells with charger. The item “Etropolis Electric Bike Step Through” is in sale since Tuesday, April 2, 2019. This item is in the category “Sporting Goods\Cycling\Bikes”. The seller is “karl19670″ and is located in Bristol. This item can be shipped to United Kingdom.
  • Gender: Unisex Adult
  • Wheel Size: 27.5″
  • Model: Urban
  • Colour: White
  • Country/Region of Manufacture: United Kingdom
  • Suspension: Front
  • Handlebar Type: Riser Bar
  • Number of Gears: 7
  • Frame Size: 21″
  • Type: City Bike
  • Features: Adjustable Seat
  • MPN: Does Not Apply
  • Frame Material: Aluminium
  • Brand: Etropolis
  • Brake Type: Direct/Linear Pull (V-Brakes)

Etropolis Electric Bike Step Through

Risunmotor 3000W Electric Bike Conversion kits +Color LCD 19 Hub Motor Power

Risunmotor_3000W_Electric_Bike_Conversion_kits_Color_LCD_19_Hub_Motor_Power_01_ujaw
Risunmotor 3000W Electric Bike Conversion kits +Color LCD 19 Hub Motor Power
Risunmotor 3000W Electric Bike Conversion kits +Color LCD 19 Hub Motor Power
Risunmotor 3000W Electric Bike Conversion kits +Color LCD 19 Hub Motor Power
Risunmotor 3000W Electric Bike Conversion kits +Color LCD 19 Hub Motor Power
Risunmotor 3000W Electric Bike Conversion kits +Color LCD 19 Hub Motor Power
Risunmotor 3000W Electric Bike Conversion kits +Color LCD 19 Hub Motor Power
Risunmotor 3000W Electric Bike Conversion kits +Color LCD 19 Hub Motor Power
Risunmotor 3000W Electric Bike Conversion kits +Color LCD 19 Hub Motor Power
Risunmotor 3000W Electric Bike Conversion kits +Color LCD 19 Hub Motor Power
Risunmotor 3000W Electric Bike Conversion kits +Color LCD 19 Hub Motor Power
Risunmotor 3000W Electric Bike Conversion kits +Color LCD 19 Hub Motor Power

Risunmotor 3000W Electric Bike Conversion kits +Color LCD 19 Hub Motor Power
Motor Exclusive Customized Super High Power 48V 60V 72V 3000W Intelligent Programmable Controller System Electric bicycle 19” Rear Wheel DIY Conversion Kits with Colorful Display. This kit include all you need to convert a bike to an E-bikeexcept the battery! We also supply battery, please kindly check our battery category. And this wheel is 19′. Features of the Product. Strong 19×1.6 Motorcycle Aluminium Alloy Rim (with 70/100-19 Off-Road Tire), 10g strong spokes. 36 MOSFET 100A 3000W Intelligent Programmable Controller. 48V, 60V, 72V Full color TFT RSM-750c Display. RM-D700 Hydraulic Disc Brake. Pedelec Assistant Sensor/8 Magnetic PAS Drive. High Quality 36 MOSFET 100A Controller, Voltage/Limit Current/Speed and so on can be -set through LCD; (Support Regenerative Function, will charge battery during braking). 36V, 48V, 60V, 72V Full color TFT RSM-750c Display (with 5-level PAS, speed limit, speed display, Regenerative Function). DNP High Quality High Torque eBike 18-teeth Freewheel. Remote start + Alarm + Motor Lock. Applicable to E-Bike, E-Motorcycle, E-Tricycle and so on. Tile Magnet, low noise and long working life. Certificates: CE, EN60335-1:2012+A112014. High Motor Efficiency: >90%. Max Torque: 120 N. Hub dropout width: 155mm rear hub motor (Single-speed Gear). It will take about 7-15 days for us to build and test this new item pack for you. If you meet any problem, please firstly kindly check wiring diagram and FAQ below. We do our best to serve our customers. We hope to be friends with every customer and share photos, video and experiences together. If you have any problems with our items or services. The item “Risunmotor 3000W Electric Bike Conversion kits +Color LCD 19 Hub Motor Power” is in sale since Tuesday, November 13, 2018. This item is in the category “Sporting Goods\Cycling\Bike Components & Parts\Electric Bike Components”. The seller is “hallomotor” and is located in Shanghai. This item can be shipped to all countries in Europe, all countries in continental Asia, United States, Canada, Australia.
  • Colour: Black
  • Country/Region of Manufacture: China
  • Type: Hub motor
  • MPN: Does Not Apply
  • For Bike Type: Rear Wheel-Single Speed Freewheel
  • Brand: Risunmotor
  • Electric Bike Part Type: Conversion Kit

Risunmotor 3000W Electric Bike Conversion kits +Color LCD 19 Hub Motor Power

Ebike Mantra Electric Bike Metallic Grey Bike MANUFACTURER REFURBISHED

Ebike_Mantra_Electric_Bike_Metallic_Grey_Bike_MANUFACTURER_REFURBISHED_01_iop
Ebike Mantra Electric Bike Metallic Grey Bike MANUFACTURER REFURBISHED
Ebike Mantra Electric Bike Metallic Grey Bike MANUFACTURER REFURBISHED
Ebike Mantra Electric Bike Metallic Grey Bike MANUFACTURER REFURBISHED
Ebike Mantra Electric Bike Metallic Grey Bike MANUFACTURER REFURBISHED
Ebike Mantra Electric Bike Metallic Grey Bike MANUFACTURER REFURBISHED
Ebike Mantra Electric Bike Metallic Grey Bike MANUFACTURER REFURBISHED
Ebike Mantra Electric Bike Metallic Grey Bike MANUFACTURER REFURBISHED
Ebike Mantra Electric Bike Metallic Grey Bike MANUFACTURER REFURBISHED
Ebike Mantra Electric Bike Metallic Grey Bike MANUFACTURER REFURBISHED
Ebike Mantra Electric Bike Metallic Grey Bike MANUFACTURER REFURBISHED

Ebike Mantra Electric Bike Metallic Grey Bike MANUFACTURER REFURBISHED
E-Plus Mantra 24v Electric Bike 20 Black. Signs of previous use. Take the strain out of cycling and give yourself an easier cycle journey. The E-Plus electric bike is simple for you to use with no complicated mechanics. Perfect for commuting the bike charges in around 2-3 hours and can travel up to 25 miles on one charge with 3 modes of assisted power. Front alloy V brake and rear alloy V brake brakes. Weight fully assembled 20kg. 26 to 32 inch inside leg measurements. Front and rear mudguards. 20kg in weight means it is easy to carry and store away. Some assembly required – need to fit the front wheel, handlebars etc.. Tyres and tubes are excluded from the guarantee. The item “Ebike Mantra Electric Bike Metallic Grey Bike MANUFACTURER REFURBISHED” is in sale since Monday, September 3, 2018. This item is in the category “Sporting Goods\Cycling\Bikes”. The seller is “toymonster_co_uk” and is located in Hockley, Essex, SS5 4AD. This item can be shipped to United Kingdom.
  • Gender: Unisex Adult
  • Wheel Size: 20″
  • Model: Drift
  • Colour: Grey
  • Country/Region of Manufacture: China
  • Suspension: No Suspension
  • Number of Gears: 1
  • Non-Domestic Product: No
  • Type: Electric Bike
  • Features: Adjustable Seat
  • Manufacturer Colour: Grey
  • MPN: EGBIKE83
  • Frame Material: Steel
  • Brand: E-Plus
  • Brake Type: Caliper – Center Pull

Ebike Mantra Electric Bike Metallic Grey Bike MANUFACTURER REFURBISHED

3.2 TFT Display + 3000W Electric MTB Bicycle E Bike Hub Motor Conversion kit

3_2_TFT_Display_3000W_Electric_MTB_Bicycle_E_Bike_Hub_Motor_Conversion_kit_01_txdt
3.2 TFT Display + 3000W Electric MTB Bicycle E Bike Hub Motor Conversion kit
3.2 TFT Display + 3000W Electric MTB Bicycle E Bike Hub Motor Conversion kit
3.2 TFT Display + 3000W Electric MTB Bicycle E Bike Hub Motor Conversion kit
3.2 TFT Display + 3000W Electric MTB Bicycle E Bike Hub Motor Conversion kit
3.2 TFT Display + 3000W Electric MTB Bicycle E Bike Hub Motor Conversion kit
3.2 TFT Display + 3000W Electric MTB Bicycle E Bike Hub Motor Conversion kit
3.2 TFT Display + 3000W Electric MTB Bicycle E Bike Hub Motor Conversion kit
3.2 TFT Display + 3000W Electric MTB Bicycle E Bike Hub Motor Conversion kit
3.2 TFT Display + 3000W Electric MTB Bicycle E Bike Hub Motor Conversion kit

3.2 TFT Display + 3000W Electric MTB Bicycle E Bike Hub Motor Conversion kit
3.2 TFT Display + 3000W Electric MTB Bicycle E Bike Hub Motor Conversion kit. TFT LCD+3000W Hi Speed Electric MTB Bicycle E Bike Hub Motor Conversion kitNo tire, the kit includes. 1 x the 3000w DC motor with double hall sensor (150mm dropout, suitable for bicycle disc brake and single 16tooth freewheel for bicycle chain). 1 x MTX Sun Ringle bicycle rim. 1 x 60A controller (24 MOZ Tube in it) German quality. 1 x brake lever. 1 x 6 or 7 speed gear. 1 x TFT LCD display with 3.2 high contrast color screen. 1 x Normal Disc Brake Plate diameter 140mm (Optional). 1 set of Tektro HD-E500 Hydraulic Brake rear & front Plate Diameter 203mm (Optional). Top speed: 72V3000W-72-80km/h(50miles/h) goes with 26inch wheel; 60V3000W-about 60km/h(38miles) goes with 26 inch wheel; 48V3000W-50-55km/h(35miles/h) goes with 26inch wheel. /M, good ability to climb the hills. 24MOZ Tube controller (24MOZ tubes in it). TFT LCD display with 3.2 high contrast color screen shows battery power level, time, speed, mileage, gear, input power. Components error checking and report. Rim width: 38.9mm. Please check the rim specification in the following picture. 1, 48V, 60V or 72V3000W brushless gearless hub motor. 2, Magnet size: 42mm, dropout size:150mm. 3, MTX Sun Ringle bicycle rim. 4, 24MOZ Tube controller, Protect and prolong the life of the battery. 5, Brake lever, shut off the motor when you brake stainless steel disc brake. 6, Suggestion about the battery. 2, We do not mark merchandise values below value or mark the item as ” gifts” – US and international government regulations prohibit such behavior. USA, Canada, Belgium, Danmark, Finland, Greece, Germany, Ireland, Italy, Luxemburg, Malta, Sweden, Portugal, Switzerland, UK, Austria, France, Spain, Australia & New Zealand, Thailand, Singapore, Vietnam. 2, if the item is not described or represented in this listing please send it back. 1, We always take customer service seriously and want you to be 100% happy with your shopping experience here. 3, Please contact me before you return it. Are committed to resolve all issues in a friendly and satisfactory manner. The item “3.2 TFT Display + 3000W Electric MTB Bicycle E Bike Hub Motor Conversion kit” is in sale since Friday, September 22, 2017. This item is in the category “Sporting Goods\Cycling\Bike Components & Parts\Electric Bike Components”. The seller is “sannykung” and is located in Guangzhou. This item can be shipped to all countries in Europe, United States, Japan, Canada, Australia.
  • Type: Conversion Kit
  • Brand: theebikemotor
  • MPN: Does Not Apply
  • Electric Bike Part Type: Conversion Kit
  • Country/Region of Manufacture: China

3.2 TFT Display + 3000W Electric MTB Bicycle E Bike Hub Motor Conversion kit