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Justin Cole, Kris Williams, Chad Dickman, and Todd Sanderson of West Virginia University Institute of Technology just completed their Suzuki GT 750 Electric Motorcycle Conversion. Looks like it turned out real good. Even though the power of the motor that was removed would have been much more powerful the new 8 HP electric motor does get this thing moving at a nice speed. "Motor Briggs and Stratton Etek-R Model EMC-R 8 HP – Continous 15 HP – Peak 160 In-lb Torque The electric motor kit selected for the design was a Briggs and Stratton E-Tek R. The E-Tek R is a 48 volt electric motor. It delivers a peak horsepower of 15 HP and 8 continuous HP. Also, a Magura twist grip throttle, wire kit, and a 250 amp fuse were purchased. The cost of the motor kit was $1075 and was ordered from electricmotorsport.com.
Controller Alltrax 4834 Input: 24-48 volt Current: 300 Continous amps
Batteries 48 Volt System 4 – BB Batteries Model EB50-12 The desired specifications for the battery were as follows: Four EB50-12 batteries, manufactured by B.B. Batteries, were selected for the power source. The batteries are 12 V batteries and weigh in at 36.4 lbs each. The EB50-12 has an amp hour (Ah) rating of 50 Ah. The EB50-12 battery is lighter and smaller than a typical 12 V car battery that was originally considered. The cost for one battery was $145. The battery charger purchased for the project was a 48 V, 4 amp charger produced by Soneil. This charging system will charge fully discharged batteries in eleven hours.
Contactor White Rogers 12-4T Coil Voltage: 12 VDC Rated Voltage: 12 VDC Continuous Current: 200 amps Fault Current: 1000 amps
Throttle Magura Twist Grip 0-5k"
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June 19th, 2009
Id just like to add that the bike was built for a total of $2100 and that it can reach a top speed of 50 miles an hour and it has an estimated range of 25 miles. Also I would love to do another conversion for profit if anyone is interested.
June 19th, 2009
I am an EE and was looking into doing a conversion for a 2007 LIFAN TMS Motorcycle, but I am always hesitant to TIG weld, or any weld for that matter since it is the only tool I do not own. How much welding was involved?
June 19th, 2009
I’m torn. The EE in me thinks this is an awesome project. But the motorcyclist in me died a little when it was a gt750 that gave it’s life for this. Those are awesome rare bikes.
Nice range with inexpensive batteries tho. Gives me a little hope for building my own one of these days.
June 19th, 2009
There was a good bit of welding involved, the whole battery tray was made of mild steel and mig welded but the motor plate was made of 1/4 inch aluminum and just bolted in place. If you could build the battery trays out of aluminum, steel and just bolt the stuff or build it out of a composite such as carbon fiber or fiberglass. We chose the bike on the fact that it was a steel frame and we could weld to it.
June 20th, 2009
Well we bought the bike from a motor cycle repair place for $200. It was already in pretty bad shape if you look at the photos. It wasn’t that bad of a build, I enjoyed it and I encourage you to give it a try.
June 25th, 2009
NOOOOOO NOT A WATERBUFFALO!!
September 8th, 2009
[...] Suzuki GT 750 Electric Motorcycle Conversion – Hacked Gadgets … [...]
November 28th, 2009
i need diagram elektrical about box electric tsr suzuki 200. tanks for your attention
August 12th, 2010
I’m building a similar e-bike and I have a question on the sprockets you used for the front (on the Etek motor) and on the rear. Did you use the standard sprockets or did you have to modify the size.
Thanks
Brian
August 12th, 2010
We used standard sprockets bought from mcmaster carr. the drive was 12 or 11 tooth and the driven was 48 I believe. we geared it for a top speed of 50 mph and were able to reach it in a short distance.
September 12th, 2012
Parabéns pelo site! Congratulations on your site!
January 16th, 2013
do you guys have a wiring diagram?