Simple chain drive

deacon · #1 (**permalink**) 09-14-2009, 11:37 AM

I took a look at a wheel I had left over from my pusher motor and the light bulb lit. Why not put the whole assemble in the front fork. So I did. I'm waiting on a new controller, due in today, to finish it.

An unexpected benefit is that it is easy to mount and dismount.

I probably will pull a battery trailer but you could do this as well if you wanted to go 24v

Of course this bike is so small i'm going to look like a circus bear.

deacon · #2 (**permalink**) 09-14-2009, 07:21 PM

when the controller arrive I spend most of the afternoon figuring out what the devil I had done to my system. When i burned up my last controller I also burned up the throttle. I finally got it all working at 6pm but my battery pack is flat now. I am also drained so it will have to wait until tomorrow. But it does run.

After I run it with a full pack I will see what I need to do to make it better. I think a larger wheel and a smaller sprocket are in order. I am going to try to mount the spare motor from the 2nd rhino drive onto a 20 rear wheel and make it fit into a front fork. If i can do that then I will get a #25 sprocket and weld it to the sprocket of the 20" coaster wheel.

weekend-fun · #3 (**permalink**) 09-14-2009, 07:55 PM

That looks kool deacon! NIce Job !

spad4me · #4 (**permalink**) 09-14-2009, 08:22 PM

That looks very easy to do .
And very professional.

jdcburg · #5 (**permalink**) 09-14-2009, 09:29 PM

Deacon - Looks good. Is that the motor we talked about earlier (from AllElectronics maybe?) with the freewheel sprocket? - jd

Kevlarr · #6 (**permalink**) 09-14-2009, 09:51 PM

I'm gonna have to tell my buddy about this, he's been saying he wants a larger sprocket off the motor and a rear wheel on the front would give him any gear ratio he could want.

deacon · #7 (**permalink**) 09-14-2009, 10:09 PM

This particular one is the 600 watt the same as the one from all electronics. The mount is one I had from tnc for their bike motors. I did a little modification to make it fit nothing much.

This particular wheel is a front wheel from a kids bike. I bought it because it had a very larger flange around the hub. I was able to bolt the scooter sprocket on it. I'm going to look at doing it with a 20" wheel tomorrow.

It steers a lot better than I expected. All the weight is below the center of gravity on this one. I have a 36 watt controller now. I have a feeling the 24 watt I gave a link to before is at least as good. It migh even be a little better.

I think I have pretty much accomplished most of my Ebike goals.

I built an easy pusher motor.... then probably the best friction drive I have ever seen. ugly sure but it really does perform well. Now this is by far the easiest chain drive I have ever worked with.

deacon · #8 (**permalink**) 09-15-2009, 02:10 PM

I rode the bike with the 16" wheel. It was just okay so I moved the sprocket up to a twenty inch wheel and spent the day trying to get it adjusted. I just don't like it. I will give it a day or two more, but I think it is going to wind up with a rhino drive. They are much simpler and seem to have as good as if not better performance.

I just like that drive I guess.

myocardia · #9 (**permalink**) 09-15-2009, 06:06 PM

Quote:

Originally Posted by deacon

Of course this bike is so small i'm going to look like a circus bear.

I'm glad you said it Deacon, because I was thinking it but not wanting to say it.

I'm glad you have your main bike the way you want it now, so you can experiment and still have a ride. I like this particular build, besides the size of the bike, but then I'm a chain drive kind of guy. Would you mind telling us what you didn't like about this one, besides the size?

deacon · #10 (**permalink**) 09-15-2009, 08:17 PM

Quote:

Originally Posted by myocardia

I'm glad you said it Deacon, because I was thinking it but not wanting to say it.

I'm glad you have your main bike the way you want it now, so you can experiment and still have a ride. I like this particular build, besides the size of the bike, but then I'm a chain drive kind of guy. Would you mind telling us what you didn't like about this one, besides the size?

To be honest I rode it again and it has possibilities. I set it up with the twenty inch wheel and the 65 tooth sprocket. It has a performance problem. The friction drive set up the same way has some issues as well with throttle. For some reason the throttle will only increase the speed to a certain point then it will stop and is just useless. I think that is a torque problem.

I have decided to get a 80 Tooth sprocket and a different drive wheel and give that a try. I think that on the medium incline the bike just gives up because it is geared wrong. I'll let you know what happens. I know i can always run the friction drive which makes me feel a lot better about messing. with this bike.

I did have to reengineer the front fork. I added some width by adding some shackles for the wheel. That required a little trial and error but it ran pretty good the last time. I had a mountain of small things to correct but it did run better the last time but that no top end on the throttle irritates me. I have decided to see what I can do about that. I don't like being beaten by machines.