How To Make an Electric Bike Part 6 www.comcycle-usa.com
March 24, 2011 by pbik
Filed under Electric bike
In this video we complete our electric bike conversion project by installing the controller and test riding the bike. Visit us at www.comcycle-usa.com
I have a Busettii Electric Bike and I love it ,Ride it everyday ! I wanna try the new vortex bike too!
How safe are these electric bike kits when it rains? I live in a part where we have 200+ days of rain every year but is seriously considering an “electrical upgrade”.
@rainbowdragon1215 I’d imagine.. From the look of things this setup is pretty much chain independent!
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exelent idea : )
@animator909 Brushed motors have two leads. This is a brushless motor, it has a total of 8 leads. 3 leads are the phase wires, and the other 5 are for the hall sensors. Nearly all brushless motors work this way. There is a new generation starting to come out that is brushless and does not use hall sensors. Such motors only have 3 phase wires. Like I mention somewhere, this stuff is changing pretty fast right now.
@evildoctorbluetooth That is commonly referred to as “regen”.
This controller cant do regen, but we sell the compatible Infineon model that can, both braking regen and full time regen.
Also, this motor features a clutch that allows the motor to freewheel to a stop when the bike is coasting, so the motor cannot do regen.
This design makes the bike feel more like a bicycle. It coasts and descends freely. Regen on a bike adds coasting drag. Both styles have their fans.
@rainbowdragon1215 BMC makes a front wheel version too. We have concluded that only very low power motors work on the front of a bike. These motors have too much torque and tear apart most forks, even rigid steel forks, in the long run. The rear of the bike is much better at supporting the weight and power of the motor.
I have seen other E-kits like this also, and wanted to ask most I have seen lets you choose either the front, or the back wheel, does yours only do the back wheel ?
@rainbowdragon1215 Yes, I have build up a bike with no chain with this motor. Of course, you cannot add pedal power and you end up with more like an electric scooter, but it does work.
Does this kit work on Chainless Bicycle’s ?
will the controller charge the battery at certain times, IE, going down hill?
could dynamic breaking be used?
Really helpful video !
@MrGolfTee With 36V about 23-25mph. With 48V about 29-31mph
top speed?
@kevykev38 Like anything there is a wide variety of prices and qualities of solutions. The quality of batteries, controllers, the wheel build, etc., can all cause the price of the kit to vary a lot. We actually sell a lot of our kits to people who have those low priced kits that fall apart after a few months.
@avirankatz It provide throttle control efficiently. If you just hook up a motor to a battery, it just runs full speed. If you just put a resistor in line, it burns off lots of power. Modern controllers us Pulse Wave Modulation (PWM) curtuitry and Mosfet transistors to switch the power at different frequencies to vary motor speeds with minimal losses.
What does the controller do?
Can’t I simply connect the battery to the electric motor?
This depends on the capacity of the battery measured in Kilowatt-Hours. This battery is 36V 10AH or 360 Kilowatt-Hours. I am presuming neutral conditions, meaning no wind or hills. Other factors matter like rider weight, how much stopping/starting you do, and how much pedal power you add.
At a low speed of 12mph you can probably get 15-18 miles from a battery like this. At a top speed of about 25mph you can probably get 5-10 miles. Average would be between the two for speed and distance.
how long will this run before needing recharge? If you want to know at what speed then can yuo give me an example at low speed, average speed and top speed thanks.
way better project than a pyramid car rofl if you havent heard about “pyramid car” yet, you better use youtube right now to get the right image about it
i built a electric scooter with 1000wat 48volt moter running 36volts and 26aph batteries and the thing runs longer than 8 hours and 4.70 gearing goes 42mph just though you would like to know that is posable
Dennis thanks for these tutorials… very well done and I learnt alot!
Nice idea and great fun. But upon checking your site out ..I found the kits and components to be very over priced. I have found similar components on another site that were much much cheaper. Why is that?