Flapdoodle
Member
I got my hybrid (or tribrid) running.
I could not think of a way to make a dual throttle, so I used an old shift lever to make a thumb throttle. It is mounted under the bar so I can activate if as I twist the electric throttle. Other than that it was a straight forward installation.
There is a page for the bike here:
http://flapdoodle.250free.com/80cc.html
Weight breakdown (I weigh 170)
Bike ~55#
E-motor 14.5#
Batteries 28.5#
Gas engine ~20#
Total 118#
Cost breakdown
Bike $66
motor 149 including shipping
E-motor 375
Total $ 590
(however there were other items that were added because I wanted to)
I considered the charge voltage too high with the included charger and adjusted it downward with the tiny pot next the output cable to cut off at 41 volts.
On the first test I got it up to 17 mph on a slight upgrade and a good headwind (NWS said 21 mph) on electric only. More testing will be posted here when it quits raining.
My driveway is loose gravel that has never allowed me to drive on it using gas, but I can now using electric only. (There was an SUV, and a Harley get stuck in the gravel).
The motor has three heavy wires that I assume are power, though actually they look a bit light for 600 watts (600/36=16.6 amps). I plan to replace them with heavier gage wire eventually.
There are 4 lighter wires I think are control. Rotating the wheel with a digital voltmeter indicated a disappointing 7 volts. Maybe it needs a control voltage to make it work? It does have electric braking capabilities, and electronic cruise control that I have yet to figure out how to make work. May have to disassemble the controller and trace out the circuit to learn what makes it tick.
I could not think of a way to make a dual throttle, so I used an old shift lever to make a thumb throttle. It is mounted under the bar so I can activate if as I twist the electric throttle. Other than that it was a straight forward installation.
There is a page for the bike here:
http://flapdoodle.250free.com/80cc.html
Weight breakdown (I weigh 170)
Bike ~55#
E-motor 14.5#
Batteries 28.5#
Gas engine ~20#
Total 118#
Cost breakdown
Bike $66
motor 149 including shipping
E-motor 375
Total $ 590
(however there were other items that were added because I wanted to)
I considered the charge voltage too high with the included charger and adjusted it downward with the tiny pot next the output cable to cut off at 41 volts.
On the first test I got it up to 17 mph on a slight upgrade and a good headwind (NWS said 21 mph) on electric only. More testing will be posted here when it quits raining.
My driveway is loose gravel that has never allowed me to drive on it using gas, but I can now using electric only. (There was an SUV, and a Harley get stuck in the gravel).
The motor has three heavy wires that I assume are power, though actually they look a bit light for 600 watts (600/36=16.6 amps). I plan to replace them with heavier gage wire eventually.
There are 4 lighter wires I think are control. Rotating the wheel with a digital voltmeter indicated a disappointing 7 volts. Maybe it needs a control voltage to make it work? It does have electric braking capabilities, and electronic cruise control that I have yet to figure out how to make work. May have to disassemble the controller and trace out the circuit to learn what makes it tick.
