Replica of the Siemens Smart ChopperBattery traysWelding battery traysDrill for idler sprocket placementMotor mounts welded in place.
OwnerMuchiri Motilewa
Owner's Other EV2014 Tesla P85S
LocationLithonia, Georgia US map
Web/EmailWebPage email image
Vehicle2017 Harley Davidson Softail Chopper
Building a tribute to this American
Choppers S06E15 Siemens Smart Chopper from
the ground up using a ProTube frame and
making a few improvements: 168 volt Li-
Poly batteries not 72 volt lead-acid; 100
HP Advanced DC 9" 144 volt motor; an
on-board 3.3kw charger; and finally, lots
more chrome.
MotorAdvanced DC FB1-4001 Series Wound DC
Voltage: 144 DC
Power: 100 horses, 75kw
Weight: 143 pounds
Diameter: 9.1 inches
Length: 15.62 inches
DrivetrainDirect drive via a single 530 chain with sprockets: 26 front, 48 rear
producing a final 1.86:1 ratio. At 3,400 rpm the bike should go about
167 miles per hour.
ControllerZeva MC1000C
Slightly over volting with 168 volts and
grossly over amping 1,000 amps for short
durations... like during a quarter mile run
should produce 220 hp on demand.
Batteries200 Panasonic Li-Poly, 4.20 Volt, Lithium-Polymer
cells arranged in modules. 5 parallel groups of 5 modules in series. Each module has 8 Li-
Poly cells at 4.2 volts totaling 33.6 volts and 1.1 Kwh of power totaling 27.2kwh.
System Voltage168 Volts
ChargerElcon 168 volts, 3,300 watts
Elcon PFC-3300 Charger 168 volts @ 3.3KW
waterproof CAN bus controlled.
DC/DC Converter PC Power supply
Modified an 800 watt PC Power Supply to take 168 volts DC input from the
battery pack and give 12 volts output. Just bypass the full wave bridge
rectifier and you're done.
InstrumentationKoso Digital Speedometer / Dashboard
Top Speed167 MPH (268 KPH)
Top speed can only be calculated since this
is a work in progress. The motor max RPM is
7,000 but max torque is at 3,400 so sprocket
ratio of 1.86:1 has peak power output arrive
at 167 mph.
AccelerationOMG, should run like a Tesla Model S.
Range250 Miles (402 Kilometers)
SWAG: 300 miles. This is only a guess since it is a work in progress. We're
using Nissan Leaf sized motor and batteries, 27.2 kWh, but with 600 pounds
instead of 3,400. That's 5 times less weight, and less than half of the
frontal area. A Leaf gets 100 miles on a charge. That is around 270 watts
per mile. A Tesla Model S routinely uses 345 watts per mile at 5,000 pounds
and my lead foot. If we can use around 90 watts per mile that will let us
get almost 300 miles per charge. That compares to the Model S Tesla with 85
kWh with a 300 mile range.
Watt Hours/Mile90 Wh/Mile
Only theoretical.
Seating Capacity2 adults
Curb Weight620 Pounds (281 Kilograms)
Weight of bike is unknown and approximations
are based on component weight. Units of
weight are pounds: Motor 143, batteries 170
chassis 150, fork 65, front wheel 19, rear
wheel 42, controller charger cables and
fiberglass faring are to be determined.
Tires19" x 3" Front Avon
18" x 12" Rear Avon Venom
Conversion CostNo comment, my wife might read this.

code by jerry