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Old 06-10-2010, 06:51 PM
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Motorized Bicycle Newbie
Join Date: Mar 2010
Location: maineville ohio
Posts: 17
Default Re: A beginner with plenty of questions. All input is appreciated.

I built a Cranbrook. I used the rag joint rear sprocket assembly until I got the Nice Aluminum piece from Manic Mechanic. That is a class piece and it allows perfect lateral adjustment of the sprocket.

The rag joint.. I had to thin the pieces on the outside of the spokes next to the sprocket to get it to line up properly. I thinned them by using a band saw. Be careful if you do that since you have to hold the pieces some how.

It lined up fine but it is not a precise thing when tightening down the nine bolts you could get some wobble in the rear sprocket.

I took enough links out of the drive chain that the hump going over the chain Idler was not a radical change in direction.

I added a Front brake and a mechanical speedomoter.
The fitting from the gas tank on mine was in an awkard position so I had to extend it and add a 45 degree angle to get it to clear.

The split end clamp joint on the intake manifold to the Carb is hard to get a good seal.

I am going to tackle that issue soon. Thinking about trying to put a thin plastic hose piece over it with a couple clamps if I can get that to work.

Hope none of this scares you off. If you have some mechanical ability you can solve all these issues.

Pictures here: Motorbike

For the last few years I built and repaired Mini Sprint race cars that are powered by sportbike motors so I had to make a lot of parts, brackets etc.

Have fun...!!
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