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Tandem Bike Conversion System

  • $1,426.00 Base Price

Product Code: TANDEMDDR20-7-4815DT

Tandem Bike Conversion System

E-Bike Kit Dealers

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Onboarding is easy and fast. Your local dealer can offer you any of our products and help with conversion if required.
Still need help finding a dealer? Email: support@ebikekit.com

Description


Heavy-Duty kit for Tandem Bicycles.

Extras Included:

  • Pedal-Assist Extension Cable
  • Heavy-Duty Direct Drive Motor
  • Does Not Include Mounting System for Battery

 E-BikeKit Rear 500w Direct Drive Hub Motor Conversion Kit with 48 Volt Li-ion Battery Pack and Charger.

This premium electric bike conversion kit system is for riders that require the increased durability of a direct drive motor for heavier loads and the long term reliability of a lithium battery. The direct-drive hub motor used in this conversion kit system is for heavier applications and a MUST for any total load (bike + rider + cargo) of 300 lbs or more. This system pairs the heavy-duty motor with a 48v battery pack for increased torque and a 20 mph top speed.

Direct drive motors are strong, durable, and long-lasting due to zero internal friction. Some lower quality or larger direct drive motors have resistance, but that should not be a concern with this E-BikeKit direct drive hub motor.

System Specs:
Watts (Nominal/Peak): 500-1000w (EBK 22Amp Controller)
Top Speed: Approx. 20 Mph @ 48v in 26" Wheel
Range: 9-42 Miles (Based on rider's weight, input, and terrain contingent)
Charge Time: 3-7 Hours (Charged from 0-100% and depending on battery choice)
Weight: 24 lbs (11 kgs)
Performance: High

Efficiency: Medium
Stealth Factor: Low

Li-ion batteries provide a high level of performance for the duration of each discharge (unlike seal lead-acid where performance is diminished 1:1 as the pack is emptied). Li-ion batteries have a much higher power to weight ratio than lead-acid and 5-8 times the number of charge cycles (how many times a rechargeable battery can be charged from 0-100%). The li-ion option costs more initially, but over time, the "cost-per-cycle" is about half the cost of lead-acid. Li-ion packs also require less care as they can be left partially charged, and do not require immediate charging after each use. All batteries MUST be properly cared for during storage.



Choosing Your Wheel Size: The wheel size is written on the sidewall of the tire. Available size options for this conversion kit are: 16", 20", 24", 26", 700c, and 29er. Acceptable tire widths for the E-BikeKit rims: 1.15" (29mm) - 2.25" (57mm).

Freewheel Choice and OLD Spacing: Our motors are intended for a 7-speed freewheel and provide 135mm OLD (dropout) spacing with a 7-speed freewheel and 15mm disc-offset.

When using an 8, 9, or 10-speed freewheel, this will increase the OLD by about 3.5mm per speed. When we assemble the motor here, we will dish and space it correctly to fit this. To install the wider wheel, you may need to spread the dropouts of the bike open in order to fit.

If you are not using disc brakes, so don't need the 15mm disc-offset, we can reconfigure the spacing to fit 135mm in many cases.

Learn More: Top 25 FAQ | Front vs Rear Wheel | Compatibility | Pedal Assist Compatibility

Helpful Resources: Helpful Videos | Owner's Manuals

Note: Our kits include parts to fit a wide variety of bikes, but do not fit every bike without modification or extra parts. Our representatives are available to help with compatibility questions and make recommendations on additional parts that you may need.

Questions? Call us toll-free at 1-866-882-3245 and an experienced professional can assist you. Monday – Friday 9 am - 5 pm EST. Outside of business hours get help fast via e-mail.

Shipping Note: Li-ion batteries are shipped separately from electric bike kits. Li-ion battery packs are shipped via FedEx Hazmat and are require a signature for delivery. You may receive your kit, battery, and possibly the battery rack (if applicable), on separate days.

Motor Specs:


Brand: Electric Bike Technologies, Inc.
Type: Direct Drive (Brushless, and disc brake compatible)
Power: 500w Nominal / > 1000 @ 48v
Max Torque: 46Nm @ 48v (up to 48v w/ 600 lbs max load)
Max RPM: 259 @ 48v
Cable: 8" Axle Exit, 3-Phase / 5 Hall Effect
Connector: Round 8-Pin 19/32" (10.4mm)
Weight: 12.8 lbs (5.8 kg)
Warranty: 1 Year

Battery Specs:


Range: 15-30 Miles (Based on riders weight, input and terrain contingent)
Charging Time: 15Ah Pack = 5 Hours / 3Amp Charger
Nominal Voltage: 48v
Nominal Capacity: 15Ah (0.2C)
Battery Energy: 720Wh approx.
Dimensions: 14in x 3.5in x 5in (356mm x 89mm x 127mm) approx.
Total Weight: 10.125 lbs (4.6 kg)
Cell Assembly: 18650-3.6v-13S4P
Life Cycles: 500-800 Cycles
Max. Continuous Discharge: 16A
BMS Protection Current: 20A
Discharge Cut-Off Voltage: 37.5v
Max Charge Voltage: 54.6v
Inner Resistance: < = 230mΩ
Operation Temperature Range: Charge: 0°C – 113°F / Discharge: -68°F – 140°F
Storage Temperature: 0°C – 104°F (Extended Storage: 59°F – 77°F)
Battery Case Material: Plastic
Limited Warranty: 1 Year
Manufacturer: Electric Bike Technologies, Inc.

UN 38.3 Certified e-bike battery 
Assembled Pack Certificates: UN38.3; MSDS; RoHS; SGS

Includes


Every E-BikeKit conversion kit comes with all of the parts you'll need for your conversion.
1 x USA Hand-Built Wheel w/ Disc-Brake Compatible Hub Motor
1 x 48V Compatible 22Amp 12FET Controller
1 x Programmable LCD Dashboard
1 x PAS 12-Magnet Split Disc
1 x PAS Sensor Left Side Mount (Right side mount by request only)
1 x Thumb Throttle
2 x Left and Right E-Brake Levers
1 x Motor Cable
1 x Accessory Cable
1 x Battery Wire Harnesses (Only included w/ no battery kits)
1 x Freewheel (For rear kits only)
1 x Battery
1 x Battery Charger
1 x Owner's Manual (An online PDF)
**Zip Ties, C-Washers, and Torque Arms in Every Kit!

Extras for Recumbent Tandem Bicycle Kit:
1 x Pedal-Assist Extension Cable


Heavy-Duty kit for Tandem Bicycles.

Extras Included:

  • Pedal-Assist Extension Cable
  • Heavy-Duty Direct Drive Motor
  • Does Not Include Mounting System for Battery

 E-BikeKit Rear 500w Direct Drive Hub Motor Conversion Kit with 48 Volt Li-ion Battery Pack and Charger.

This premium electric bike conversion kit system is for riders that require the increased durability of a direct drive motor for heavier loads and the long term reliability of a lithium battery. The direct-drive hub motor used in this conversion kit system is for heavier applications and a MUST for any total load (bike + rider + cargo) of 300 lbs or more. This system pairs the heavy-duty motor with a 48v battery pack for increased torque and a 20 mph top speed.

Direct drive motors are strong, durable, and long-lasting due to zero internal friction. Some lower quality or larger direct drive motors have resistance, but that should not be a concern with this E-BikeKit direct drive hub motor.

System Specs:
Watts (Nominal/Peak): 500-1000w (EBK 22Amp Controller)
Top Speed: Approx. 20 Mph @ 48v in 26" Wheel
Range: 9-42 Miles (Based on rider's weight, input, and terrain contingent)
Charge Time: 3-7 Hours (Charged from 0-100% and depending on battery choice)
Weight: 24 lbs (11 kgs)
Performance: High

Efficiency: Medium
Stealth Factor: Low

Li-ion batteries provide a high level of performance for the duration of each discharge (unlike seal lead-acid where performance is diminished 1:1 as the pack is emptied). Li-ion batteries have a much higher power to weight ratio than lead-acid and 5-8 times the number of charge cycles (how many times a rechargeable battery can be charged from 0-100%). The li-ion option costs more initially, but over time, the "cost-per-cycle" is about half the cost of lead-acid. Li-ion packs also require less care as they can be left partially charged, and do not require immediate charging after each use. All batteries MUST be properly cared for during storage.



Choosing Your Wheel Size: The wheel size is written on the sidewall of the tire. Available size options for this conversion kit are: 16", 20", 24", 26", 700c, and 29er. Acceptable tire widths for the E-BikeKit rims: 1.15" (29mm) - 2.25" (57mm).

Freewheel Choice and OLD Spacing: Our motors are intended for a 7-speed freewheel and provide 135mm OLD (dropout) spacing with a 7-speed freewheel and 15mm disc-offset.

When using an 8, 9, or 10-speed freewheel, this will increase the OLD by about 3.5mm per speed. When we assemble the motor here, we will dish and space it correctly to fit this. To install the wider wheel, you may need to spread the dropouts of the bike open in order to fit.

If you are not using disc brakes, so don't need the 15mm disc-offset, we can reconfigure the spacing to fit 135mm in many cases.

Learn More: Top 25 FAQ | Front vs Rear Wheel | Compatibility | Pedal Assist Compatibility

Helpful Resources: Helpful Videos | Owner's Manuals

Note: Our kits include parts to fit a wide variety of bikes, but do not fit every bike without modification or extra parts. Our representatives are available to help with compatibility questions and make recommendations on additional parts that you may need.

Questions? Call us toll-free at 1-866-882-3245 and an experienced professional can assist you. Monday – Friday 9 am - 5 pm EST. Outside of business hours get help fast via e-mail.

Shipping Note: Li-ion batteries are shipped separately from electric bike kits. Li-ion battery packs are shipped via FedEx Hazmat and are require a signature for delivery. You may receive your kit, battery, and possibly the battery rack (if applicable), on separate days.

Brand: Electric Bike Technologies, Inc.
Type: Direct Drive (Brushless, and disc brake compatible)
Power: 500w Nominal / > 1000 @ 48v
Max Torque: 46Nm @ 48v (up to 48v w/ 600 lbs max load)
Max RPM: 259 @ 48v
Cable: 8" Axle Exit, 3-Phase / 5 Hall Effect
Connector: Round 8-Pin 19/32" (10.4mm)
Weight: 12.8 lbs (5.8 kg)
Warranty: 1 Year

Range: 15-30 Miles (Based on riders weight, input and terrain contingent)
Charging Time: 15Ah Pack = 5 Hours / 3Amp Charger
Nominal Voltage: 48v
Nominal Capacity: 15Ah (0.2C)
Battery Energy: 720Wh approx.
Dimensions: 14in x 3.5in x 5in (356mm x 89mm x 127mm) approx.
Total Weight: 10.125 lbs (4.6 kg)
Cell Assembly: 18650-3.6v-13S4P
Life Cycles: 500-800 Cycles
Max. Continuous Discharge: 16A
BMS Protection Current: 20A
Discharge Cut-Off Voltage: 37.5v
Max Charge Voltage: 54.6v
Inner Resistance: < = 230mΩ
Operation Temperature Range: Charge: 0°C – 113°F / Discharge: -68°F – 140°F
Storage Temperature: 0°C – 104°F (Extended Storage: 59°F – 77°F)
Battery Case Material: Plastic
Limited Warranty: 1 Year
Manufacturer: Electric Bike Technologies, Inc.

UN 38.3 Certified e-bike battery 
Assembled Pack Certificates: UN38.3; MSDS; RoHS; SGS

Every E-BikeKit conversion kit comes with all of the parts you'll need for your conversion.
1 x USA Hand-Built Wheel w/ Disc-Brake Compatible Hub Motor
1 x 48V Compatible 22Amp 12FET Controller
1 x Programmable LCD Dashboard
1 x PAS 12-Magnet Split Disc
1 x PAS Sensor Left Side Mount (Right side mount by request only)
1 x Thumb Throttle
2 x Left and Right E-Brake Levers
1 x Motor Cable
1 x Accessory Cable
1 x Battery Wire Harnesses (Only included w/ no battery kits)
1 x Freewheel (For rear kits only)
1 x Battery
1 x Battery Charger
1 x Owner's Manual (An online PDF)
**Zip Ties, C-Washers, and Torque Arms in Every Kit!

Extras for Recumbent Tandem Bicycle Kit:
1 x Pedal-Assist Extension Cable