OwnerJohn Bidwell
Owner's Other EVsMountain Bike
1987 Kawasaki Ninja 750
High Performance Motorbike
2006 Schwinn LIPO HUB Conversion
LocationFort Collins, Colorado United States map
Web/EmailWebPage email image
Vehicle2004 Kawasaki KX125
Very Low weight rolling chassis with great suspension and brakes produces very high performance electric conversion running at 72 volts.
MotorBriggs and Stratton Permanent Magnet DC
Perm motor is great alternative
Drivetrain#40 Chain drive
ControllerAlltrax 24 to 72 volt 300 or 450 amp
Programmable features help tune performance.
Batteries6, 12.00 Volt, Lead-Acid, AGM
B&B lead, A123 Lithium , or Lithium Thundersky's are other options

36, 48, 60 volt options
System Voltage72 Volts
ChargerK and W BC-20
Resistor change to change nominal voltage
DC/DC Converter
Uses single Pack battery. Low draw from LED lights
InstrumentationPakTrakr battery monitor
Top Speed55 MPH (88 KPH)
Varies with easy gearing changes and throttle governor circuit.

30 MPH moped up to 80 MPH racer
AccelerationNominal 0-30 in < 4 seconds. Varies with weight and batteries
Range41 Miles (65 Kilometers)
stop and go with 50 amp-hr lead

Range Varies with batteries used
Watt Hours/Mile87 Wh/Mile
EV Miles
Current:218 Miles (350 Kilometers)
    As of 11/13/2007
Seating Capacity2 adults
Curb Weight192 Pounds (87 Kilograms)
Depends on batteries (e.g. 216 lbs with 8 amp-hr 72 volt Deka lead acid)
Tires21 - front
19 - rear
Conversion Time40 hours
Conversion Cost$1000 chassis
~$1865 drive train
Additional FeaturesMotor on swing arm and easily built battery cage allow for a variety of battery choices including long rage lead or Lithium or very light weight lithium.

No Welding or machining required.

All Electric parts off the shelf.

Bicycle Speedometer added.

Quick change battery packs possible.

Versatile motorcycle for many uses:
* Commuting
* Shopping
* Trail riding
* Motocross
* Super Motard
* Dirt track oval racing
* indoor oval racing

Conversion description will be available free on web (www.21wheels.com). WebPage
Conversion details will depend on information from the book "The Secrets of El Ninja".

code by jerry