Which Bike Generator is right for you?

There are 3 types of bicycle DC generators to choose from

  1. Belt drive style - using a pulley and a belt around a rear bike wheel with the tire removed.

  2. Rubber roller style - used on exercise bikes.

  3. Metal roller style - which is driven by the rear wheel of a bicycle. No need to remove tire.

Belt Drive

300 Watt Bicycle Generator - Belt Drive 300 Watt Bicycle Generator - Belt Drive
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300 Watt Bicycle Generator - Belt Drive
$199.00

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All of our products are engineer built and come with a 1 year warranty and service plan. Lead time is typically 2-7 days, but contact us for a better estimate.

100% Human-powered Operation

This DC Generator can be driven by human power, wind power, or hydro. The 3/8" wide pulley has a 2 inch outer diameter. You will be able to mount this generator to a bike stand using an adapter mounting plate.

You can save more than 50% by making your own. Purchase a "MY1016" scooter motorand a 2" V-belt pulley 5/16" bore. Or you can this on Amazon.

It may be a big surprise, yes any DC permanent magnet motor also works as a DC generator. The MY1016 scooter is very robust engineered to operate in harsh conditions. It has ball bearings on its shaft as opposed to brass bushing bearings which are found in most cheap motors.

View PDF Data Sheet

View Owner’s Manual

Belt Drive 300W Bike Generator + Stand Belt Drive 300W Bike Generator + Stand
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Belt Drive 300W Bike Generator + Stand
$999.00

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All of our products are engineer built and come with a 1 year warranty and service plan. Lead time is typically 6-8 weeks, but contact us for a better estimate.

100% Human-powered Operation


The PPG-B300 Pedal Power Generator Belt Drive and Stand offers the flexibility to be used with either an adult full sized bicycle, or with a small child’s bicycle. This characteristic makes it the ideal solution for usage in a K- 12 classroom educational setting. It folds up and stores in a small location. It can be used for applications such as charging 12V Lead Acid Batteries, or 12V power packs because it puts out DC Voltage. For riders that can put out over 100 Watts, you will like the belt drive system because it has up to 40% more efficiency over a roller style generator system. (More details on this in the FAQ) You may take a look at the power output data by clicking on test results graphs shown.

FEATURES

  • Fits adults bike or kids bike (18″ wheels up to 27″ wheel size).

  • Able to charge 12V batteries

  • Alternative energy resource

  • Used for emergency power

  • Prepper bunker power

  • Great for classroom education

  • Fits adult bicycles

  • Drives 12V water pump

  • Drives 12V blender

  • Drives 12V air compressor

  • Charges portable power packs

  • Up to 300 Watts of power

Download Data Sheet

Download Owner’s Manual

Exericse Bike Generator - DIY

300 Watt Exercise Bike Generator Dynamo 300 Watt Exercise Bike Generator Dynamo
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300 Watt Exercise Bike Generator Dynamo
$249.00

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All of our products are engineer built and come with a 1 year warranty and service plan. Lead time is typically 2-7 days, but contact us for a better estimate.

100% Human-powered Operation

This generator allows you to make electricity by attaching it to the wheel of a bicycle or stationary exercise bike with a metal fly wheel. This DC Generator can be driven by human power, wind power, or hydro.

The 1" wide rubber drive roller 1.5 inch diameter. You will be able to mount this generator to a bike stand using an adapter mounting plate. Or you can mount this generator against the heavy fly wheel of a stationary exercise bike.

The graphs shown in the images are from actual data collected during a 1 hour period while charging a deep cycle 12V lead acid AGM battery. This is actually a permanent magnet DC motor. It may be a big surprise, yes any DC permanent magnet motor also works as a DC generator. This is a very robust engineered unit made to operate in harsh conditions. It has ball bearings on its shaft as opposed to brass bushing bearings which are found in most cheap generators.


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View Owner’s Manual

  • Up to 300 Watts

  • Rubber roller: for exercise bike generators

  • DIY

Dual Generator

  • Up to 500 Watts

  • No removal of back tire

  • Already assembled version + Alone for a DIY platform

  • Highest Watts out of all our generators

BigFoot - 500 Watt Bicycle Generator + Stand BigFoot - 500 Watt Bicycle Generator + Stand
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BigFoot - 500 Watt Bicycle Generator + Stand
$1,499.00

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All of our products are engineer built and come with a 1 year warranty and service plan. Lead time is typically 6-8 weeks, but contact us for a better estimate.

100% Human-powered Operation

This dual two way Bigfoot Bicycle Generator system is easy to setup and generate power 0 to 100V DC up to 500 Watts output good for prepper backup power and for STEM in the classroom. Used to charge solar generators that can handle 145V DC

  • This will plug directly into a portable power station like the Bluetti AC200 which has a max input Voltage of 145V DC

  • 500W DIY pedal power provides peace of mind when the power goes out. This system will charge 12V batteries through a blocking diode. and charge controller

  • We will include a custom adapter to easily plug into the AC200 model power station.

  • This system can 24V lithium portable power stations / solar generators through an over Voltage relay

Product includes:

  • Dual generator roller system

  • Power meter

  • Blocking diode

  • 1 year warranty + support

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Download Owner’s Manual

500 Watt Dual Generator Dynamo
$599.00

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(Bike Stand Not Included)

All of our products are engineer built and come with a 1 year warranty and service plan. Lead time is typically 2-7 days, but contact us for a better estimate.

100% Human-powered Operation

The PPG-R500-SS dual DC generator dynamo is a robust ball bearing double generator connected by a rock solid 2inch x 3inch roller. This design is made to mount against the rear tire of a bicycle. The two generators can be configured end to end (series) to generate over 80VDC. The two generators can also be wired in parallel to supply twice the current as a single generator. This dual generator unit can reach an absolute maximum power of over 500 Watts (See data below) This unit can be mounted on a bike stand plate that adjusts the height of the roller to have good contact to the wheel as shown in the photo. You will note there are two graphs showing on the product images. The first graph shown indicates the absolute max peak power that can be reached during a 10 second burst of speed also known as a sprintinch hitting over 500 Watts. The PPG-R500-SS was wired in series mode for this experiment and connected to a 14 Ohm load. The second graph shows 1 Amp Hour of battery charging which took about 10 minutes of pedaling. In this case the PPG-500R-SS was wired in parallel configuration to allow more current to be delivered to the 12V deep cycle marine battery.

Contact us for the Data Sheet and Owner’s manual

Belt Drive and Rubber Roller Specifications

Technical specification sheet for a DC motor model PPG-B300 and PPG-R300, detailing output voltage, current ratings, power, drive type, temperature, cooling, bearing, mounting, wiring, weight, poles, generator type, voltage, RPM, and resistance.
Graph showing the relationship between generator internal resistance and RPM at different amperages for a 300 watt generator, with resistance on the y-axis and RPM on the x-axis.

BENCHMARK / TEST DATA

This data was recorded using a WattsVIEW power monitor while charging a 12V Deep Cycle Duracell Battery Powerpack during a one-hour charging session.

For more information see the FAQ WEBPAGE.   If you want to buy a generator stand ready to go out of the box then go  HERE.

BENCH MARKING / TEST RESULTS

Graph showing generator voltage output versus RPM at three different amperage levels: 0, 5, and 10 amps, with voltage on the vertical axis and RPM on the horizontal axis.

The data below shows actual data from a belt – pulley generator during a one hour bike riding session.   Remember that Watts  = Volts X Amps.  So the 2nd chart below (green chart)  is Watts which is simply the product of the red (Amps) and white (Volts) lines of the first chart.

Graph showing voltage and amperage readings over time for a 300-watt bicycle generator stand with labeled voltage in white and amperage in red, indicating power output fluctuations.
Graph displaying measured watts for a belt drive bicycle generator stand over time, with fluctuating amplitude readings ranging from 0 to 300 watts.
Graph showing power output of a belt drive bicycle generator stand with 300 watts, including lines for calories burned and watt hours over time, with labels and a black background.

What some people do not realize is that a DC bike generator dynamo can be used to charge a solar generator. The tricky part of it is finding out the maximum Voltage allowed into the solar generator and setting up your generator so that it DOES NOT EXCEED that maximum Voltage. An easy way to find this out is to opne a search on Amazon or Google or your favorite search enginer and type the model of the solar generator along with the words Specifications PDF. Then look for Input charge Voltage There are three ways a pedal power bicycle generator can be configured to charge a solar generator :

If you do a search for the phrase “Solar Generator” you will see hundreds of options like these shown HERE. A solar generator is just a fancy name for a (usually Lithium) battery portable power station that has a built in charge controller that can handle a wide input Votlage from a solar panel. A normal portable battery powerpack power station just takes a 12V DC input.

  • OPTION 1 – A single 300W PPG-R300 or 300W PPG-B300 generator will put out a max Voltage of about 50VDC. So to be safe you would do a search for a solar generator that could handle a charge OCT or maximum input Voltage of 60V DC or higher and connect your bike generator to it. HINT: The higher the charge Voltage then the higher the cost of the solar generator. An example of a high input Voltage For example the 1500WH Bluetti Maxoak can handle a max input charge Voltage of 68VDC. It costs $799. If you go with a two way dual 500W generator it can hit a peak of 100V DC so you would need something like the Bluetti AC200 Max that can handle a max input charge Voltage of 145V DC. This costs $1,899

  • OPTION 2 – Use a much less expensive solar generator along with an over Voltage protection module.

Diagram of an electric bike charging system showing a bike connected to a portable solar generator through an over voltage protection relay.

This will open up the connection between the bike generator and the solar generator power station whenever you start to pedal too fast and exceed the max Voltage of your solar generator.  For example I purchased the  FlashFish 200W for $129.00.  It has a lot of power for such a small size.   It takes a max input charge DC Votlage of 24V.    To protect it from being damaged by the bike generator I installed an NC25A-12V  unit which opens up the relay connection at about 16V DC  When pedaling at 50V DC Output on the bike generator.  The reason why the NC25A is so special is that handles a max input Voltage of  140V DC  so that when it opens up to protet your solar generator  it does not get destroyed by a huge Voltage spike.   This means the Voltage going into the FlashFish  will never go over 16V DC.