Frame Bracing MockupBracing Mockup
OwnerAndrew Rivers
LocationCordova, Tennessee US map
Email email image
Vehicle1984 Kawasaki GPz 900R / ZX900A
This bike has not been running for a number of years and appears to have been stored outside for the majority of that time. The engine block has a baseball size hole in it from a rouge connecting rod. Most of the other parts, including the ones I need for the conversion, are in reasonable shape though.
Motor AC-20 3-Phase AC
54lb (24.5kg) 40kw peak (54hp) 89% peak efficiency
DrivetrainSingle, direct 5:1(13:65) reduction 530 chain drive
ControllerCurtis 1238-6501
24-96V,550Amp
Batteries124 Headway 40152S, 99.20 Volt, Lithium Iron Phosphate
3.2V 15ah cells 480g ea. ~100w*hr/kg
Over 1000 W/kg
31s4p configuration for 99v nominal at 60ah for ~5.9kw*hr nominal.
131lb (59.52kg) pack weight
System Voltage96 Volts
ChargerElcon TCCH-144-08
or similar
Heaternone
DC/DC Converter undetermined
InstrumentationCycle Analyst
Top Speed112 MPH (180 KPH)
Gearing limited to 112mph. With a 5:1 ratio and 18" wheel, the motor is kept at peak efficiency between 45-65mph (72-104kph) which is inline with local speed limits. I do not plan on much highway use.
AccelerationShould be nice with the 5:1 ratio
Calculations say 0-60mph in ~5sec
Range60 Miles (96 Kilometers)
Calculators say 50-60mi avg. to 80% discharge
40-80mi depending on speed
EV Miles
Start:11,425 Miles (18,382 Kilometers)
Current:11,425 Miles (18,382 Kilometers)
Total:0 Miles (0 Kilometers)
Seating Capacity2 adults
Curb Weight420 Pounds (190 Kilograms)
Should be 420lb or lighter.
Was ~566lb (257kg) stock and wet.
TiresWill be Michelin Pilot Activ
Front: 120/80-16 60 V
Rear: 130/80-18 66 V
Conversion TimeAs fast as funds permit. Started April 21, 2012
Conversion CostLooking like ~$8000 in the end.
So far.
Bike + shipping: $914.93
Magura throttle w/ dummy grip: $57
Motor and controller: $1950 + $130 shipping
Additional FeaturesThe bike will have full LED lighting, regen as a rear brake and on board charging. Enhanced air cooling for the motor will be in the works once the bike is "finished".
(May 17 2012): I have the bike down to a rolling chassis now. I am currently working on getting the main frame repainted, the suspension and brakes refurbished and the motor mounts finalized.

(May 26 2012): Main frame re-painted. Considering battery voltage increase to 145v-158v with 44-48s. Supposedly higher voltages are okay on the ME0913 especially considering max rpm will coincide with max speed. Which at 80+mph will neither be frequent or sustained.

(December 4 2012): Received the motor and controller from the 2012 ARC-EV race bike with a couple custom controller features and a fiberglass airscoop. It will be a substantial improvement in power handling and heat tolerance over the ME0913 which I will sell shortly.

code by jerry