Owner | Steve | ||
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Owner's Other EV | Electric Scooter | ||
Location | Wickham, Western Australia Australia map | ||
Web/Email | WebPage | ||
Vehicle | 2009 Homemade This bike uses the front end of an old bicycle and some scrap pieces of 50mm by 50mm by 3mm square tubing for the bike frame. | ||
Motor | Unite Motor MY1050 Permanent Magnet DC 24 VDC 500 Watt 2400 RPM 27 Amps | ||
Drivetrain | DC Motor and chain drive to the rear wheel using a 11 tooth drive sprocket and a 55 tooth driven sprocket. | ||
Controller | Homemade Programmed "PICAXE" Microcontroller. The microcontroller PWM function pulses a 30VDC (max), 100 Amp (max) "packaged" Mosfet at 250 Hz. The Mosfet is available in Australia from Jaycar Electronics, part# SY-4086. Variable speed is achieved by way of a "Hall Effect" throttle. | ||
Batteries | 2, 12.00 Volt, Lead-Acid, AGM 26Ah each. | ||
System Voltage | 24 Volts | ||
Charger | Homemade 24 volt, 10amp charger using a surplus 250VA transformer, 35 amp bridge rectifier and electrolytic capacitor | ||
Heater | None: No need to have a heater when you live in the hot and humid tropics!!! | ||
Instrumentation | Possibly a 100amp to 50mV meter shunt to be installed and a 100 amp (50mV FSD) to be installed somewhere on the front of the E-Bike where the driver can clearly see it. | ||
Top Speed | 25 MPH (40 KPH) Not sure what the top speed is but I will be changing out the 88 tooth driven sprocket to a 55 tooth to gain more speed! ((It's now been changed and has made a noticeable change in speed! And still has good torque! Top speed = 25MPH???. But still needs to be properly checked. | ||
Acceleration | Pretty good. | ||
Range | Unknown - I recently took the E-Bike out for a 5 kilometer ride. The controller was just noticeably warm and the motor was somewhat hot, but not to hot. The controller and heat sink appear to be totally overkill, but that's the parts that were in my junk box, so that's what I used. | ||
Watt Hours/Mile | unknown | ||
EV Miles |
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Seating Capacity | 1 (and only one, ME!) | ||
Curb Weight | 50 Pounds (22 Kilograms) | ||
Tires | Front: 26 X 1.95 @ 60 PIS Rear: 12.5 X 2.5 @ 40 PSI | ||
Conversion Time | About 1 year. But lost enthusiasm many time during construction. Especially during the hot humid months! | ||
Conversion Cost | $350- 400 |