Motor ControllerMotorAutobike Shift mechanism
OwnerDavid O'Neel
Owner's Other EV1986 Yamaha Radian
LocationRedmond, Washington US map
Web/Email email image
Vehicle1999 AutoBike
MotorWilderness Energy BD-36 Permanent Magnet DC
Made in China ;-)

600W brushed
Drivetrainhuman/electric hybrid
ControllerNavitas TSP
24-36V 100A
Batteries3, 12.00 Volt,
12 Ah SLA sealed lead acid
System Voltage36 Volts
InstrumentationBell speedo/odo/headlight
Top Speed39 MPH (62 KPH)
with pedaling, downhill ;-)
25+ on flat level ground, with a fresh charge (no pedaling)
AccelerationTBD, but pretty quick
Range15 Miles (24 Kilometers)
Because its a hybrid, theoretical range is up to the rider, but who really wants to pedal an 80lb bike once the batteries are dead?!
EV Miles
Current:430 Miles (691 Kilometers)
    As of 3/10/2007
Seating Capacity1 adult
Curb Weight78 Pounds (35 Kilograms)
Its a bit top-heavy. I had to replace the stock kickstand so it could stand on its own. The rear luggage rack is not the ideal location for SLA batteries.
Tires26" smooth street tires
Conversion Time1 day
Conversion Cost$400 kit on a $50 bike
Additional FeaturesBell headlight and tail light, 6V and 1.5V, but not wired into traction batteries (yet).
AutoBike shift mechanism runs off centrifugal force on counterweights, which means I am always in the right gear. With quicker acceleration and deceleration, I don't have to worry about shifting at all. The only drawback is that the gearing is not ideal for the electric setup. First gear is not low enough and 6th gear is not high enough.
Kit connectors were cheap so I replaced almost all of them. The first thing I noticed while using it is that it has basically zero suspension other than the air in the tires. No easy way to fix that so I will probably just install the motor kit and auto-shift system to another bicycle later, more off-road type with mono-shock on the rear etc.. Will probably end up wearing out brake shoes much faster now!

Update: Today in preparing the bike for the new season, I found 5 broken spokes on the rear wheel. OUCH! I believe it is a combination of the extra battery weight on the rear, as well as no suspension whatsoever.

code by jerry