The simplest DIY electric bike

Electric bicycles are in trend today. Even well-known car companies will present a model of a futuristic bicycle of the future, the operation of which is based on clean, cheap energy. Well, those who like to make things with their own hands also do not ignore this topic. Moreover, it is easier than ever to get spare parts for such devices.
Want to see what one of the most budget-friendly electric bikes looks like? In this article we will not only show it, but also tell you how it works and even how much you can buy spare parts for this miracle of technology.
This electric bicycle model is so simple that anyone, even a novice master, can assemble it. This is a great opportunity to test your creativity and crafting skills. Well, the reward will be a completely functional and practical electric bike based on a regular sports bike.
The simplest DIY electric bike

The simplest DIY electric bike

List of materials


  • Sports bike or regular;
  • A wheel for cargo carts or mobile equipment, you can easily make it yourself;
  • 24V DC motor 300-350W;
  • Lead battery 12 V/12 A - 2 pcs.;
  • Toggle button;
  • Hardware, wiring and some metal parts.

The simplest DIY electric bike

The simplest DIY electric bike

The simplest DIY electric bike

The simplest DIY electric bike

Let's start assembling the electric bike


A special feature of these bicycles is the absence of a rear foot brake. They provide manual braking of the rear wheel using rubber pads and two multi-directional arc-shaped levers. Their compression occurs from the tension of a steel cable connected to the handle on the steering wheel. The principle of the driving module is based on the transmission of torque from the engine to the bicycle wheel through a rubber-coated auxiliary wheel.

Engine preparation


The engine has a regular cylindrical shape, to the body of which two metal mounting angles are welded. It is necessary to attach a wheel to the engine shaft, which will transmit torque when in contact with the tire of the bike.
In size it should not exceed the diameter of the engine body, so as not to overload it during operation. This could be a rubberized wheel for cargo carts, equipment or even furniture.
The simplest DIY electric bike

Installing the engine on a bicycle


Using plates with holes and a small piece of board, we fasten the engine to the bicycle frame with bolts. We center it so that the auxiliary wheel has uniform contact with the bike tire.
The simplest DIY electric bike

The simplest DIY electric bike

The simplest DIY electric bike

The simplest DIY electric bike

To protect against dirt and dust, bicycles are equipped with a fender, which in our case is metal. We leave it in its place, making a hole with a grinder for the wheel of the device.
The simplest DIY electric bike

The simplest DIY electric bike

Electrics


For power batteries, the author chose inexpensive 12 V lead batteries connected in series, suggesting as an option placing them in an old laptop bag. It can be attached behind the saddle, to the side of our device.
The simplest DIY electric bike

The simplest DIY electric bike

The simplest DIY electric bike

We take out the wires from the batteries, connect them in series with the engine and lead them to the toggle switch on the steering wheel. There are no controllers for adjusting the speed; I pressed the button - the full voltage of 24 V was supplied to the motor from the batteries. The simplest toggle switch can be mounted somewhere in a convenient place on the steering wheel.
To protect the driving mechanism of our electric bicycle, we can attach metal plates to both sides of the frame.
The simplest DIY electric bike

The simplest DIY electric bike

The simplest DIY electric bike

The simplest DIY electric bike

For safety, all solders and contact groups should be insulated with heat shrink, hot glue or electrical tape.
The simplest DIY electric bike

This design of an electric bicycle is really simple and practically does not require specialized maintenance. All you need is to charge the batteries in time and monitor the speed on the roads, because according to the author, it can reach 35 km/h!
The simplest DIY electric bike

The simplest DIY electric bike

The simplest DIY electric bike

The simplest DIY electric bike

The simplest DIY electric bike

Watch the video of testing and assembling an electric bike


come back
Comment
  • bowtiesmilelaughingblushsmileyrelaxed relaxedsmirk
    heart_eyeskissing_heartkissing_closed_eyesflushedrelievedsatisfiedgrin
    winkstuck_out_tongue_winking_eyestuck_out_tongue_closed_eyesgrinningkissingstuck_out_tonguesleeping
    worriedfrowninganguishedopen_mouthgrimacingconfusedhushed
    expressionlessunamusedsweat_smilesweatdisappointed_relievedwearypassive
    disappointedconfoundedfearfulcold_sweatperseverecrysob
    joyastonishedscreamtired_faceangryragetriumph
    sleepyyummasksunglassesdizzy_faceimpsmiling_imp
    neutral_faceno_mouthinnocent
4 minus one =
Comments (8)
  1. Yuri Stepanov
    #1 Yuri Stepanov Guests March 12, 2018 08:38
    8
    “We leave it in its place, making a hole with a grinder under the wheel of the device” - what-what????? Bulgarian????? Have you seen this "hole" made by the grinder? Author, why lie like that???? Such a HOLE in the wing can only be made with extremely crooked hands using a blunt chisel, knocking on it with a piece of brick!!! It doesn’t even smell like “grinder” here.... P.s. It’s a good idea, finish something off, bring it to mind, and you can use it practically!
    1. Guest Igor
      #2 Guest Igor Guests July 3, 2018 10:26
      0
      All this will work until the first rain. I would like to see you when you drive, say, from fishing along a dirt road.
      For trips around the house, in clear and dry weather and on asphalt, it will handle, but the tire will wear out very quickly. Friction is not good for rubber.
  2. bike scratcher
    #3 bike scratcher Guests 12 March 2018 19:30
    11
    Did you gnaw out the wing with wire cutters?
  3. Farit
    #4 Farit Guests July 9, 2018 05:03
    2
    Is it easier to criticize, but to do better yourself is weak?
    1. Guest Igor
      #5 Guest Igor Guests 31 August 2018 19:06
      2
      As our physical education teacher told us in 9th grade, having sex with a condom is like sucking sugar through glass.
      This is what the author is doing. If he is so handy, then he needs to change a lot of things in the bike, the carriage, the rear hub, and do everything wisely. And this is purely sucking sugar through glass.
      To convert a (regular) bicycle to electric traction, factory conditions are needed. At home, this is a utopia.
  4. Vazgen
    #6 Vazgen Guests 13 April 2019 21:41
    1
    "without pedaling" I just fell out satisfied
  5. Kickass
    #7 Kickass Guests 27 May 2019 05:49
    1
    when you press the brake, you need the motor to move away from the wheel, and it seems to me that pressing with a spring would not be bad
  6. Victor
    #8 Victor Guests 11 February 2022 23:03
    2
    This has long been invented and has long been sold as an attachment to a bicycle! And on this engine, with a fresh charge and 24V, a maximum of 25 km/h is 300 meters, then the speed decreases. I have a factory electric bike with the same batteries and engine, and you can set any parameters on the speedometer.