OwnerMichael Shipway
LocationRockville, Maryland United States map
Email email image
Vehicle1970 Raleigh folding bicycle
MotorBosch EV Warrior Permanent Magnet DC
two 12 Volt EV Warrior surplus
DrivetrainEV Warrior Friction roller to rear wheel.
single contactor from Commuta-Car, controlled by 12 Volt switch on the handle bars. 12 Volt by taping the battery pack.
Batteries2, 12.00 Volt, Lead-Acid, AGM
System Voltage24 Volts
ChargerEV Warrior
24 Volt 5 Amp, automatic 3 stage, surplus
HeaterSolar (I don't like to ride when it's raining)
DC/DC Converter
though might add a primative one for the 12 Volt contactor coil to help keep the batteries balanced.
Instrumentation+/- 60 Amp ammeter, bicycle digital speedometer/odometer/clock.
Top Speed19 MPH (30 KPH)
motor power only, 26 MPH with me helping
Seating Capacity1 adult
Curb Weight70 Pounds (31 Kilograms)
Tiresstock bicycle
Conversion TimeConmversion Cost
Additional FeaturesHalogen Head light, powered by 2 "C" cells.
LED flashing tail light, powered by 2 "AA" cells.
3 speed in-hub shift for human power.
Folds up in 5 minutes to fit in car trunk.
Motors $40 (surplus) Batteries $30 (surplus) Fuse and holder $15 Contactor $0 (on my junk shelf) Switch $0 (on my junk shelf) Total $110

code by jerry