numberonebikeslover
1 kW
Dear All,
Many Regards!
From my childhood i thougt of making a big electric toy with a very big motor and a very big battery cell so i will be able to ride it my self. i had the habit of breaking my toys and modifying it. so i would say that it was my childhood dream.
With the intension of making a very very low cost electric bike i often went to the junkyards in my city (N.W.F.P., Peshawar). I collected some pieces of pipes and mettles to make the frame of the bike. i draw it on papers first then discussed with some of the professional and non professional technical hands about the drawings and finally welded it. i wanted a bike frame specially designed for speed and with the ability to go off-road, cause the roads here are like that.
I found a fan motor, big enough to accommodate more wire for further rewinding to higher voltages, and I rewind it to first 24 volt then after test and some consultation I did it for 36 then ultimately for 48 volts.
Instead of using expensive speed controller I’ve used relays to connect batteries (4 of them) parallel and series to get 12, 24, 36 and 48 volts by a throttle switch that I designed it my self by using wood. But I would modify it further.
Most importantly I’ve not connected the motor directly to the wheel, instead I’ve connected it to the gearing mechanism so this gives me the choice to go for speed on straight roads and go for torque on hills. This saves my batteries and reduce the load on motor.
With slight power of paddling it is giving me 60 km/hr these days, I’m really enjoying my ride to my office which is about 14 km away.
This is the first electric bike in my city, so people during my ride gather around me on bikes and cars to see me and ask me couple of questions. Some of them take my pictures by their mobile cameras and what not and what not.
Here are some of its pictures that will let you know some of its mechanical/technical aspects.
Sincerely Yours
Naeem
Many Regards!
From my childhood i thougt of making a big electric toy with a very big motor and a very big battery cell so i will be able to ride it my self. i had the habit of breaking my toys and modifying it. so i would say that it was my childhood dream.
With the intension of making a very very low cost electric bike i often went to the junkyards in my city (N.W.F.P., Peshawar). I collected some pieces of pipes and mettles to make the frame of the bike. i draw it on papers first then discussed with some of the professional and non professional technical hands about the drawings and finally welded it. i wanted a bike frame specially designed for speed and with the ability to go off-road, cause the roads here are like that.
I found a fan motor, big enough to accommodate more wire for further rewinding to higher voltages, and I rewind it to first 24 volt then after test and some consultation I did it for 36 then ultimately for 48 volts.
Instead of using expensive speed controller I’ve used relays to connect batteries (4 of them) parallel and series to get 12, 24, 36 and 48 volts by a throttle switch that I designed it my self by using wood. But I would modify it further.
Most importantly I’ve not connected the motor directly to the wheel, instead I’ve connected it to the gearing mechanism so this gives me the choice to go for speed on straight roads and go for torque on hills. This saves my batteries and reduce the load on motor.
With slight power of paddling it is giving me 60 km/hr these days, I’m really enjoying my ride to my office which is about 14 km away.
This is the first electric bike in my city, so people during my ride gather around me on bikes and cars to see me and ask me couple of questions. Some of them take my pictures by their mobile cameras and what not and what not.
Here are some of its pictures that will let you know some of its mechanical/technical aspects.
Sincerely Yours
Naeem