Motorized Bike Project.

[Megadan]

Originally Posted by wheelbender6

Lookin good! I would try to mount the engine so that the float bowl on the carb is level. Unfortunately, that will make the conflict between the exhaust and front tire even worse.

Won't mount that way in any case. This is with the mounts aligned, and not unusual for these things to be angled anyway. This is a single jet carburetor without a pilot jet or idle circuit.

[Darkrider]

I gotta say looking in this thread is a dangerous game lol. It has me considering the idea of building such a bike and as it is i am already considering picking up two Supercycle SC1800s from Canadian tire. One to keep stock with some mild mods and the other specifically for building into a motorized bike. And now that i see sprockets out there that use the disk brake hubs to make them work its got me thinking about it further. I already have a disk brake rear wheel on one of my bikes here that does not have disk brakes. So that would be a perfect donor for that...though on the flipside that bike in itself lends itself well to a motor conversion.

[Megadan]

Originally Posted by Darkrider

I gotta say looking in this thread is a dangerous game lol. It has me considering the idea of building such a bike and as it is i am already considering picking up two Supercycle SC1800s from Canadian tire. One to keep stock with some mild mods and the other specifically for building into a motorized bike. And now that i see sprockets out there that use the disk brake hubs to make them work its got me thinking about it further. I already have a disk brake rear wheel on one of my bikes here that does not have disk brakes. So that would be a perfect donor for that...though on the flipside that bike in itself lends itself well to a motor conversion.

The hardest part is finding the right style of adapter for your bike in terms of alignment, but yeah they do make it easier. I am using a clamp on sprocket adapter secured to the rear hub. I keyed both surfaces and applied Loctite 638.

[Darkrider]

Originally Posted by Megadan

The hardest part is finding the right style of adapter for your bike in terms of alignment, but yeah they do make it easier. I am using a clamp on sprocket adapter secured to the rear hub. I keyed both surfaces and applied Loctite 638.

Took me a moment to understand what you meant there but i see now that there is an adapter that bolts to the hub itself then the sprocket bolts to that to make it a fixed mount instead of the rubber isolated set up of the clamp on hub. Kinda wonder if the electric motor kits out there use the same chain as the gas motor...would make for a clean install on one of those as well.

[Megadan]

Originally Posted by Darkrider

Took me a moment to understand what you meant there but i see now that there is an adapter that bolts to the hub itself then the sprocket bolts to that to make it a fixed mount instead of the rubber isolated set up of the clamp on hub. Kinda wonder if the electric motor kits out there use the same chain as the gas motor...would make for a clean install on one of those as well.

Well, in my case the adapter clamps to the hub inside of the spokes and 3 bosses stick out through the spokes for the sprocket to bolt to. This is the one I had to buy because my Hub is a goofy diameter, so instead of one of the cheaper ones, I had to shell out about double. Thankfully this is a good high quality unit.
https://www.bikeberry.com/products/b...37807830761638


The other style I was talking about for the disc brake hubs is this. It bolts on where the disc would go and the sprocket bolts to it. Depending on the bike or wheel hub you may or may no be able to run a disc with it. This particular company offers three different rotor offset options depending on wheel and tire setup.
https://mbrebel.com/product/medium-3...tal-thickness/

[Darkrider]

Originally Posted by Megadan

Well, in my case the adapter clamps to the hub inside of the spokes and 3 bosses stick out through the spokes for the sprocket to bolt to. This is the one I had to buy because my Hub is a goofy diameter, so instead of one of the cheaper ones, I had to shell out about double. Thankfully this is a good high quality unit.
https://www.bikeberry.com/products/b...37807830761638


The other style I was talking about for the disc brake hubs is this. It bolts on where the disc would go and the sprocket bolts to it. Depending on the bike or wheel hub you may or may no be able to run a disc with it. This particular company offers three different rotor offset options depending on wheel and tire setup.
https://mbrebel.com/product/medium-3...tal-thickness/

Im perfectly fine with the idea of using the disk flange as the drive flange and just live with the rim brakes on the rear with a disk brake front end if i were going gas powered like you. From what i have seen the electric kits use the same rubber flange set up so at least that part might be standard between the two. If so i would probably look at just solid mounting the sprocket and leave the brakes alone. As it is i happen to have disk brake type wheels on my Supercycle XTI when its supposed to have non disk wheels like the SC1800 im looking at doing the Ebike with. As it is im thinking i might convert my Triumph dual suspension bike first as the electric power would def help off road with it.

[lakinxoe]

In the process of building my homemade motorized bicycle, I opted for a kick start engine. This particular type of engine is highly recommended because it doesn't rely on a battery for ignition. Instead, the engine can be started by utilizing a kick lever, providing a reliable and convenient starting mechanism.

[lakinxoe]

Swapping sprockets can alter the gear ratio, optimizing the bike for either faster acceleration or higher top speed. Keep in mind that changing the sprockets might affect low-end torque or top-end speed.