|Location||Lehi, Utah US map|
|Vehicle||2000 Kawasaki EX250 Ninja|
|Motor||Advanced DC K91-4003 Series Wound DC|
The motor mount plate was made from a 9 1/2" tall x 7" wide x 3/8" thick aluminum from www.metalexpress.com.
See the picture with the specs.
|Drivetrain||The front sprocket is currently a 16 tooth, #50 ANSI chain size, 7/8 inch ID from www.grainger.com. The rear sprocket is a 56 tooth, #530 chain size from www.sprocketspecialists.com.|
The Curtis controller is mounted under the front of the seat on a 1/4" aluminum plate heatsink. It never gets warm to the touch. The heat sink and controller and batteries are all electrically isolated from the chassis for safety!
|Batteries||24 Thunder Sky LFP90, 3.30 Volt, Lithium-Ion|
I have installed a very simple "voltage clamp" circuit on each battery to limit the voltage to 3.8 during charging.
The battery frame / holder was made from 1/4 inch aluminium plates and "L" brackets sprayed with truck bed liner.
|System Voltage||80 Volts|
I use the Zivan as my main charger. I have opened it up and turned the "I" potentiometer all the way down. It charges at less than 10 Amps now, so I have to wait 8 or so hours for a full charge. That's OK. I like to charge slowly and carefully.
|Heater||After a ride in Utah weather I reach down and rub my hands all over the motor!|
|DC/DC Converter||Sevcon 622/11086|
72/80 volt input
300 Watt 13.5 Volt output Mounted under the seat.
|Instrumentation||PakTrakr 600EV with hall effect current sensor.|
|Top Speed||70 MPH (112 KPH)|
Wind really becomes a factor at 70 MPH.
I'm looking for ways to make the bike more aerodynamically slippery.
|Acceleration||0 to 60 in about 6 seconds with the current limit turned all the way up. Big EV grin! 0 to 60 in 10 seconds with the current limit turned all the way down.|
|Range||55 Miles (88 Kilometers)|
55 mile range at 55 MPH. I commute to work 22 miles each way with several hills and sometimes high winds. The average speed of my commute is about 60 to 65 MPH.
|Seating Capacity||2 adults|
|Curb Weight||305 Pounds (138 Kilograms)|
Have not weighed it.
The ICE bike weighed 305 lbs. dry
|Tires||Pirelli MT75 |
|Conversion Time||I completed most of the conversion between June and Dec 2007 just working on weekends. The modifications are on-going.|
|Conversion Cost||About $6,000.00. when considering the Utah state tax incentives. I rode around on my Valence batteries for a year and decided I wanted more range, so I'm on my second set of batteries.|
In April '08 I qualified for the clean air tax credit. $2500.00 bucks right off the top of of my 2007 Utah state taxes! YAHOO! I took another $1250 off of my 2008 Utah State Taxes! I sold my old gas engine for $80.00. People tell me there is no way I will ever recover all of the conversion costs with gas savings because I will eventually have to buy new batteries and that I could have just rode my 100cc scooter and saved more money.
I say, "so what, that's not the point". Then I ask "So when will your Mercedes start to pay for itself? Instead of buying & driving a Mercedes you could have bought a forty dollar bus pass each month and saved more money!" I glide to work everyday ( except in Winter ) jamin' to my favorite tunes. It's a joy to ride. I really look forward to my commute. Was it was worth the money? Hell yeah! At least a little bit less of my hard earned cash is going to the oily bastards.
|Additional Features||Stereo system!|
Ipod shuffle mounted on top of the front brake fluid reservoir.
PolyPlanar 4 channel 25 watt marine amplifier mounted under the gas tank.
2 Boss 1 3/4" tweeters
1 Boss Marine 5 1/4" woofer
( fits perfectly where the gas cap used to be! )
( Bridged the two sub-outs on the amp )
Painted it Blue ( 2011 ) more pictures soon.
|I would recommend the Kawasaki EX250 when doing a conversion, because they are lighter than a lot of other bikes you could use and you can get parts ANYWHERE!|