OwnerPeace
LocationAustin, Texas US map
WebWebPage
Vehicle2009 Electric Motorsport GPR-S
Street legal bike up to ~70 mph with 15-tooth sprocket. Fun bike that's easy to ride.

The original configuration was with SLA cells. Range was too short so I upgraded to LFPs. It's much more useful now. One of the great features of the GPR-S is its modularity and flexibility. Few other bikes even have the option to upgrade to a completely different battery chemistry.
MotorD&D Motor Systems, Inc. Separately Excited DC
DrivetrainDirect drive D&D Sepex regen motor with Sevcon PowerPak. Up to 25hp / 4500 rpm.
ControllerSevcon PowerPak PP784
Batteries24 Thunder Sky 40Ah, 3.20 Volt, Lithium-Ion
TS LFP (lithium iron phosphate) batteries
System Voltage72 Volts
ChargerZivan
Top Speed70 MPH (112 KPH)
Range30 Miles (48 Kilometers)
Upgraded from SLA to LFP which tripled the range.
Watt Hours/Mile100 Wh/Mile
EV Miles
Start:9 Miles (14 Kilometers)
Current:1,020 Miles (1,641 Kilometers)
Total:1,011 Miles (1,626 Kilometers)
 
    As of 3/13/2010
Seating Capacity2 adults
Curb Weight310 Pounds (140 Kilograms)
Conversion Cost$6700 + $3300 (LFP upgrade)
Additional FeaturesRegenerative braking
Integrated charger w/ power port (user modification)
Standard motor mount points allow for easy upgrades
LFP battery upgrade
Electric Motorsport is at the leading edge of EV motorcycles. Headquartered in Oakland CA, they collaborate with the likes of Tesla, Zero and others. Their lead tech is an Austin native.

code by jerry