BBS01B 36v250w Bafang Mid Drive Kit


(6 reviews) Write a Review

Includes latest DPC-18 colour display as standard!

BBS01B 36v250w Bafang Mid Drive Kit. The street legal electric bike conversion kit.

  • Great fun to ride
  • Everything you need to transform your standard bike into an electric bike
  • We update & improve the settings of each motor for a smoother ride
  • Excellent after sales support
  • 12 month warranty
  • Legal to ride on Australian roads without registration
  • Shipped out within 24hrs of purchase

This motor is rated to 250w but has an actual peak output of 630w! 

80nm of torque!

Benefits of a mid drive motor compared to a cheaper hub motor:

  • Uses the bikes gears as the engines transmission so the motor can run at the optimum RPM range
  • Increased performance
  • More efficient
  • Better at climbing hills
  • Better weight distribution as the motor is positioned close to the center of gravity and low to the ground
  • Improved handling
  • Easier maintenance and installation
  • A Mid Drive ebike is easier to ride because the extra weight on the wheels of a hub ebike make it tougher to pedal

This conversion kit will be sent out with the following:

  • Motor
  • LCD display
  • Thumb throttle
  • Brake levers; automatically cuts out motor when activated
  • 46t chain ring, plus cover
  • Crank arms
  • Speed sensor and magnet
  • All the required nuts, bolts & cables
  • Anderson Powerpole connectors
  • All units are programmed for a smoother riding experience and includes the throttle only option

Additional Information:

  • Designed to fit bikes with a 68mm - 73mm wide bottom bracket, this is the vast majority of bikes
  • Weight of 36v250w motor: 3.9kg
  • With every sale we provide information on how to install the kit and LCD instructions
  • Waterproof rating of IP65. This unit is water resistant, not water proof. Rain and splashing water are no problem, but do not fully submerge it under water.
  • 12 month warranty excludes misuse or abuse
  • All 36v250w kits come with the standard size 46t chain ring, if you would prefer the 44t or 48t please let us know and we will change accordingly free of charge
  • Legal to ride on Australian roads without registration
  • If there's a specific combination of motor and battery you would like that is not here please contact us



  • 36v20ah lithium ion triangle battery

6 Reviews Hide Reviews Show Reviews

  • 5
    BBS01 36V250W Bafang Mid Drive Kit

    Posted by Unknown on 4th Jun 2020

    So far so good after approx 100km. Installation instructions would be handy but most info needed is on YouTube. Moderate technical skills are needed, but not too difficult to install if care is taken. The kit has performed well to date and makes cycling a joy again. Power seems adequate for street riding and moderate inclines.

  • 5
    Great kit for the price

    Posted by Anthony on 9th Nov 2019

    I installed this kit on my 10 year old Giant Cypress City with Nexus 7 internal hub gears. I'm very happy with the quality and power, although it takes a bit of getting used to, as the power is not supplied as you might expect. It depends on how fast you're pedalling. I've realised for my commute I'm going to need to be on level 4 power setting (of 5) most of the time.
    The 16aH battery is not sufficient for my 60km round trip commute (it is best to keep it around the 20% to 80% charged range for longevity), so I've just ordered a second charger - I'll top it up at work. My commute has a lot of small ups and downs, bends, gravel - so I'm braking and accelerating all the time, hence the battery drain.
    Regarding installation, you need to watch a few videos. Do tighten things well, and use Locktite on the main motor fasteners. After my first ride of 15kms everything came loose, but now it's fine, with extra muscle applied.

  • 4
    Bafang kit

    Posted by Peter on 4th Nov 2019

    The motor drive and display are fantastic. Great product. Heaps of torque and totally silent. Disappointments are the speed magnet's screw to fasten it onto the spoke either has a torx head or a badly manufactured allen head with a spike in the middle so an allen key would not go in. The speed sensor's mounting system should be more universal and couldn't be used on my bike.

  • 5
    BBS01 36v 250W Kit

    Posted by dortwilder on 4th Jul 2019

    I spent a lot of time researching options to upgrade my urban commuter bike to an e-bike. I wanted to keep the bike street legal (250W & 25km/hr) and initially had some reservations as to whether the 250w BBS01 would have sufficient power to get me up some steep hills on my daily commute.
    Fortunately I was not disappointed!
    This kit has more than enough power to provide a great riding experience & the motor is super smooth & quiet.
    Be aware that no instructions are provided by Pirez with the kit so you will have to do your own research.
    The kit comes complete with everything you need except tools & zip ties. You will also need to have some basic bike mechanical skills complete the installation.
    I would also recommend purchasing the programming cable to get the best out of the motor.
    This is a great kit - Just get it!

  • 5
    250 watt kit

    Posted by Rob Scott on 4th May 2019

    Love it. Obviously a lot of effort and thought has gone into these kits. They install well and work a treat.

  • 5
    Very easy conversion, motor works very well.

    Posted by Brenton on 14th Oct 2018

    Makes head winds a breeze. Love riding past roadies up hills.