I have one of those gas motors, not for a bike but just the motor alone. They aren't all that heavy, I used mine for a different purpose so just bought the motor. The whole system that you will need the electric motor, batteries and the drive system, verses the gas motor system I'm betting would weigh pretty much the same amount. Plus if you batteries would go flat away from home verses running out of gas, I'll bet it is easier to find some gasoline than it would be to find someone with the right charger.I first thought of a gas engine but it increases the weight more than a motor? Hence, dropped it.
No it was I think(was a couple of years ago) it was 79cc. But they are all pretty much the same motor except for the stroke. If you look on Ebay there are quite a few to chose from. I built a gas powered winch for out in the woods. Had an electric winch that was given to me it's electric motor was burned out so I adapted the 2stroke motor to it. I was cutting fire wood so always had 2 stroke gas for the saws.Thanks. Was it a 66 cc motor?
On level ground the added weight makes very little difference to pedalling effort. The only difference I noticed when riding my power-assisted bike was balance/stability, because the centre of gravity was higher.I won't be able to pedal on even ground as the added weight will slow or stop me.
Weight does matter some, no question about that. For starters, is there really such a thing as "level ground"? And weight relates directly to inertia, and that affects every speed change.Yea, as an avid cyclist for most of my life I'm going to have to call bull on that one.
I was never an avid cyclist; just a kid going leisurely to and from high school. I can only report what I experienced. I accept that the extra weight would be unacceptable for sprints/racing.Yea, as an avid cyclist for most of my life I'm going to have to call bull on that one.
Thanks. Think a kit would be best, but would like a friction rear-wheel drive kit. Don't see any!It seems to me that you need to be knowledgeable and handy in a number of areas:
1) mechanical engineering - calculating power, torque, gear ratio
2) electrical power engineering - battery, motor, controller design
3) bicycle mechanics - free wheel sprockets, chains and gears
4) metal work, welding equipment and skills
If you are up to snuff with all of these and are a DIY person then go for it. Otherwise you may want to save your pennies towards an ebike conversion kit or a ready-built ebike.
This looks good. It says may not suit all bikes, contact us. I clicked contact us but no luck.Darn. I just gave away one of my ebikes to a reseller a few weeks ago.
The only friction drives I can find are sold from China. They are pricey. C$400 and up.
Here is a side mount drive.
Seller location is confusing. It says item is located in Ontario, Canada. Yet seller is in China.
Caveat emptor - I cannot vouch or make any recommendations on this or any product. You have to judge your own ability to install this product. It does look complex.
YaeGoo 24V 250W Electric Bicycle Motor Kit, Easy to DIY E-Bike Economic E-Bike Conversion Kit Electric Bike Side Mounted Motor Design
Buyers need to know:
This kit is not suitable for any bike, contact us before you purchase it.
please see the pictures carefully, or contact us before you purchase the kit. you can send the pictures of your rear wheel to us,
both left side and right side, we can give you some suggestions.
All the buyers should have experience to install it. If not, please do not buy it.
This kit includes:
1). 1pcs DC 250w 24v motor
2). 1pcs motor controller
3). 1pcs chain
4). 1pcs freewheel
5). 1pcs freewheel adapter
6). 1pcs mounting plate with bolts
7). 1pcs throttle handle & brake lever
8). 1pcs headlight
9). 1pcs switch & key
10).1pcs 18cm axis
This kit suitable for 22"-28" bicycle.
This kit without battery, battery charger and battery box.
|Thread starter||Similar threads||Forum||Replies||Date|
|F||Electric discharge from electric motor controller after unplugging battery.||Power Electronics||16|
|Trying to build electric bike that can switch between charge mode (through peddling) + motor assist||Power Electronics||3|
|Table fan motor for electric bike..??||General Electronics Chat||5|
|A||DC motor for e-bike||General Electronics Chat||10|
|S||help with pickups for motor bike||General Electronics Chat||2|
by Jake Hertz
by Jake Hertz