I started this electric bike project to work with alternative power sources.
As you can see I am using a 120 tooth sprocket for the drive wheel.
I will be using a 13th tooth for the motor

Our sprocket mounted to the drive wheel.

Our drive wheel mounted to the bike.

Power for our electric bike can be as high as 20hp.
We are using a 2.5kw dc motor at this time.
2.5kw motors can put out over 5hp.
5hp of dc power will take this bike to over 50mph
One thing about a DC motor is it will give full power at low rpm.
We are using a 13 tooth on the motor and 120 tooth on the drive wheel for climbing hills and to save on battery power.

13 tooth sproket mounted to motor.

2.5kw 48v Motor mounted to bike.

We are using a number 40 chain for motors under 10hp
The nunber 40 chain is very strong and and a affordable.
The "E" is for ELECTRIC POWER

Using a idler sprocket we can keep the chain from rubbing on the frame. The "E" is for ELECTRIC POWER

Idler sprocket ready to be installed on bike.

Idler sprocket and chain mounted on bike.

We had to take the bike out for her maiden voyage.
I installed 3 12v batteries a controller and a 5k pot.
We had no seat or brakes and this bike took off like a bat out of hell.
Please don't do what we did.
It was a fun , sore and dangerous test run.

To make room for larger batteries we relocated motor and eliminate the ilder gear.

With a name like Electra Green We had to add green to the bike.
Now it is time to wire the light and electronics on this bike.

Like a wizard we mix and match the right amount of electronics and wires.
Now the magic of electronics bring power to the bike.

Side view of the bike .

Front view of the bike .

Our next step is to cover and dress this bike.
This is one of my designs for this bike.

We was testing this bike at 36v now we stepped it up to 48v.
Wow what a change! from 36 to 48v the bike burns rubber now.
Now we are having so much fun riding this bike.

We wanted a custom seat but we found out the seats are as high as the price of gas
Thinking outside the box we took a old office chair,couch cushion, and a leather coat to make a custom seat.

We picked up some very good parts and a very nice set of seats
As you can see we are not using our homemade seat.
I would like to thank the person I acquired the parts from.

We installed the seats and saddle bags on the side of the bike.
Our bike is starting to look like a motorcycle.

We installed a front fender.

We installing the electronics and doing the final wiring.
The bike is almost ready for all to see.

This bike can be charged on the grid,solar and wind.
Our wind generator will charge the bike at 250 plus watts per hour.
The red solar cell will only charge at 1.5 watts per hour.

Ok after a ton of emails I am posting the wind generator.
It is not ready yet but now you can look at it.
We also are going to use 5 watt solar cells we need 16 of them.

We completed the wind generator and painted it.
I now have a small four foot mast to mount the generator on.
Here is the wind generator and solar cell panel for the electric motorcycle.

Our electric motorcycle is almost ready for the show.
The wind generator and solar panel will be part of the bike display.

This is the cover over the electronics on the motorcycle.

This is our Electric motorcycle on display in a art gallery.
I made this electric motor cycle to use as a teaching tool.
We must stop taking from this Earth and start giving back or we all lose.
If this motorcycle sparks the mind of only one person young or old it was worth building this electric motorcycle.
You can see KETV channel 7 news video by clicking this link

This is our electric motorcycle on display at the 2008 Motorcycle Show at Omaha's Septemberfest.

Electra green did get 3rd place in the custom sports category.
She Has brought more hope to her owner and encouragement to others.

Electric Free Spirit is our new electric motorycycle project.
Since America is a free spirited country filled with good people.
I will make Electric Free Spirit to show the good in a America.

Electric Free Spirit

This Harley Davidson rear drive wheel sprocket was donated by good person for Electric Free Spirit.
Thank you.
America is filled with good people.