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  #1  
Old 24-02-2008
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Disco Disco is offline
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New CRF doesn't need petrol anymore....

Something look different ?









Read up on the full project here ->

http://www.evdrive.com/Emoto_project/moto_project.html

The new generation batteries that make the BMW project so potent has excellent potential for two wheel applications as well.

This project is intended to demonstrate this potential by conversion of full performance race ready Honda CRF250R's to race ready full performance electric(CRF2eX) with equal or better performance.

Imagine how this quiet machine could change the riding opportunities. Neighbors will no longer even know you are riding. The tracks around the country that have closed because of noise would be able to continue with full electric motocrossers. When trail riding, you literally see more activity from "sneaking up" on wildlife as well as minimizing your impact.

The rewards from conversion verses ground up design are significant. We are starting with a known package that any CRF rider would immediately feel comfortable with and can withstand the pounding of the most brutal motocross tracks. This is accomplished by matching the weight and weight distribution of the original gas powered design and building the electric drive system with equal or greater tolerance to normal "abuse" by pro riders on the track.

A dyno test is planned for a side by side comparison between the original gas powered CRF250R machine and this new electric CRF2eX. The performance curves will be overlaid.....Stay tuned...

We will first need to work out the controller settings for best power delivery as well as the charging system details.

The overall width has narrowed by 3.5 inches at the foot peg area compared to the original gas engine. When we get regenerative braking, the rear brake will not be needed and can be operated by the left hand grip giving better control, since there is no longer a clutch lever present.

The bike was so hyper, while rolling it around the shop floor, it was difficult to prevent spinning the tires with slight touch of the throttle, evident by the black stripes on the floor. We are learning to leave the switch off when rolling it around...

We had just returned from the test ride out on the asphalt. These tires spin too easily at low speeds on the asphalt and so we will need street tires for a proper asphalt test, at least until the track dries up a bit more.

It has lots of torque, just what is needed for tight woods trail riding. With some electronic/software control refinements, this will be a smooth but potent machine. The quiet power is absolutely astonishing.
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Previously.... CRF250X 06, CRF450R 06, CRF250R 08, YZ450SE 07, KTM250SX 07, CRF250R 05, CRF450R 06, KTM450SX 03, KTM250EXC 03, WR250F 01, YZ250WR 01, RMX250 00

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  #2  
Old 24-02-2008
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paul650r paul650r is offline
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Whats the db reading disco??

Any Idea ?

she looks quiet mate.
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  #3  
Old 24-02-2008
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Way to go!

Just plug it in. No valves, oil changes, radiators, noise, clutch.

I would like to see a speaker system connected to the throttle with realistic 4 stroke sounds to give people something to moan about

Wonder how much they are selling the motor and radiators for?
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  #4  
Old 24-02-2008
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Awesome I hope this is the path we are heading down,i wonder if the oil company's will buy the patent and shelve it.
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  #5  
Old 24-02-2008
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When you compare the perfomance of R/C cars and A/C with their new brushless motors and Lithium polymer batteries to their full size versions, it makes you wonder why it has taken so long for someone to develop such a bike.
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  #6  
Old 24-02-2008
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how long do thay last till you have to plug them back in
hope your filling beter disco
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  #7  
Old 24-02-2008
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Yamaha_Punk Yamaha_Punk is offline
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Now that would be one of the strangest feelings.....roll on the throttle and bang you just go with no noise....

Very interesting project, I wonder if any manufacturers will take any notice. I'm guessing the limitation will be in how long the batteries last, and how long they take to charge. Looking forward to see how their tests go.
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  #8  
Old 24-02-2008
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Hivisibility Hivisibility is offline
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Well Mr D. after todays outing I'll be very interested in any technology that does away with moving parts.


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  #9  
Old 24-02-2008
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Quote:
Originally Posted by Yamaha_Punk View Post
I'm guessing the limitation will be in how long the batteries last, and how long they take to charge. Looking forward to see how their tests go.
I don't think the first one will be too limiting, a spare set of batteries could be swapped quicker than it takes to fill a petrol tank. The second could be a more of a problem.
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  #10  
Old 24-02-2008
DarkSphinx DarkSphinx is offline
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There's a production electric dirtbike here.

http://www.zeromotorcycles.com/gallery.php
http://www.zeromotorcycles.com/video.php

Doesn't look as good as that CRF though
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