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2016 EXTREME 48V-72V 35A  brushless belt mid drive electric bike conversion kit
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2016 EXTREME 48V-72V 35A brushless belt mid drive electric bike conversion kit
Price: HK $579.80
2016 GNG Premium belt mid drive kitCHECK OUT AT OUR FORUM & SEE OUR BUYERS\' EBIKES!
CAN WORK with both 73mm bottom bracket and 68mm bottom bracket
Product description
  • Handle up to2500W power(Mechanical part) (Please buy your own controller) (Controllersupporting cycle analyst isrecommended)
  • High reduction ratio from the motor to the crankset(1:33.3) provides tremendous torque and suitable human pedalling cadence
  • Top speed with 26\" bicycle: (With 48V batteries :~45kph, with 64V batteries: ~60km/h, with 72V batteries: ~70km/h)
  • Triple chainwheel with extra bearing (32T / 42T) For bicycle/ 80T (For 219H chain from motor)
  • 148mm taiwan made ISIS bottom bracket
  • Bracket compatible with both68mm and73mm bottom bracketbicycles (>90% of the bike details
    • 1xMotorwith belt reductionunit
    • 1x48V-64V Controller with current limit set to 31A (default)
    • 1x148mm high quality ISIS bottom bracket
    • 1xThumb throttle
    • 1x102 links KMC 219H chain
    • 1x170mm longISIS Crank arms withstandard1.37\" x 24 TPIthread
    • 1x5 pin yellow electric wiresconnectors box
    • 1xThree pieces crank wheel 32T/ 42T/ 80T
    • 1xBottom bracket spacersfor 68mm/73mm bottom bracket
    Whole package approx. 7.5k
    Motor reduction unit approx. 5kg, crankset with bottom bracket aprrox. unit

    FEATURE:

    • Temperature sensor in the internal core compatible with cycle analyst V3 ( 10K NTC thermistor with a beta constant of 3900.)
    • Thick motor wires handling up to 50A continuous current.
    • Compact aluminium body with maximum amount of copper mass
    • Handling up to 72V at40A

    REDUCTION UNIT
    • 25mm htd 5m 16T/80T Belt systemwith bracket tensioning system.
    • 12T/80T 219H chain secondary reductionwith redesigned tensioner wheel
    • Resultantreduction ratio 1:33.3 which suits the human pedallingcadence

    MOTOR SPEC.:
    • Weight 2.68 kg
    • Rm 73 milliohms (phase to phase)
    • Kv 67 rpm/V
    • Kt 0.143 Nm/A
    • Km 0.53 Nm/√W
    • Specific Km 0.20 (Nm/√W)/kg
    • Rotor OD 79mm
    • Stator OD 119mm
    • Stator ID 79.8mm
    • Stator thickness 25mm
    • Lamination thickness 0.5mm
    • Magnet thickness bracket set

      3-pieces CranksetThanks to the double freewheeling clutches system, cyclist do not need to pedalwhile the motor is working, andwhile the cyclist is pedalling, the motor won\'t rotate. It also enables the motor and the cyclist to work together to output higher power to the rear wheel.


      Details
      • 32T- 42T Front sprocket
      • 80T 219H chain outer sprocket
      • GNG Crank set with free wheel and extra bearing support
      • Possible to use with existingderailleur for gears change
      • Taiwan made high quality148mm ISIS bottom bracket


      Though the kit is built with premium quality, there arestill needs for replacement parts for maintenance.

      We sell every partin this kit so that your electricbike kitwill last forever

      Please visit our part store!


      The completed conversion: (We will upload installation tutorial very soon!)


      Shipping policy

      1.we will arrange this item for you within 10 working days after we receive your payment

      2.For this kit , we only offer speed post(Expedited shipping)(USD 143)Normally will arrive in3-7 working days.

      Please be reminded that sea mail may require longer time(it may exceed 7 to 10 weeks due to the tightened custom inspection.) Any complain about the duration of shipping will not be accepted. Please choose the shipping method carefully. Thank you.

      3. All items will be shipped to buy\'s paypal address. Please check your paypal address correctly.

      4.International Buyers – Please Note:

      a) Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility.

      b) Please check with your country’s customs office to determine what these additional costs will be prior to offerding/buying. While we will declare lower price and mark as a gift.

      c) the package sometimes may be delayed due to customs inspection or holiday delay.

      Payment

      We accept payment via paypal.

      1. All The Buyers must submit payment within 7 days of sale close. If payment is not received, the item will be relisted, a NON-PAYING CLAIM alert will be filed.

      2. Unpaid dispute will be filed to for the non payable buyers




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