My 63 Schwinn 97cc motorized bicycle build

[cobrafreak]

Very nice. Good lines on that bike.

[pepper]

A red tank would really set off your bike

[dash]

is your sprocket mounted to a free wheel ? how did you pull that off?

[Dowie Soetenga]

is your sprocket mounted to a free wheel ? how did you pull that off?

The right side is pedal assist with a free wheel.

The left side is motor assist with a free wheel.

The gearing is all math. My blueprint drawing calls out the sprockets and ratios. I ended up making my jackshaft output sprocket 9T vs 10T to gear the bike just a little lower. Perfect.

The speed is now 29.4mph at 4,200 rpm.

[diceman]

nice job ...yourthe only other person besides me that i have seen use that motor .
i did a jessie james chopper bike with the same engine ( sounds good ) .

[chainmaker]

Nice looking bike..did you fab those rear brake bosses, or where did You get them those are sweet.

Cheers

About those rear brake bosses?????

[Dowie Soetenga]

Nice looking bike..did you fab those rear brake bosses, or where did You get them those are sweet.

Cheers

About those rear brake bosses?????

Yes. I did make the rear brake bosses. Here is a tread I started showing how to make them.
http://www.ratrodbikes.com/forum/viewtopic.php?f=1&t=33168

[Dowie Soetenga]

Just put on my tank decals. Next is custom exhaust, heat shield / guard.

[cobrafreak]

I like it. Can you take a picture of the right hand side of the bike please?

[Dowie Soetenga]

I like it. Can you take a picture of the right hand side of the bike please?

Here are some pictures of the right side of the bike.

[Dr. Tankenstein]

I always seem to find something about a build that, 'if it were mine', I'd change.....There is NOTHING about this bike that I would change. Seriously, if it were to magically appear in my garage, it would look the same way in 10 years, 20 years.....

Cheers!
Dr. T

[Dowie Soetenga]

Thanks Dr. T! I try to keep my creations clean and simple. That's the hard part right? Of couse using 3D CAD helps me figure it all out before I cut or weld a single piece of steel.

I always seem to find something about a build that, 'if it were mine', I'd change.....There is NOTHING about this bike that I would change. Seriously, if it were to magically appear in my garage, it would look the same way in 10 years, 20 years.....

Cheers!
Dr. T

[Dowie Soetenga]

Over the last few weeks I finished the exhaust heat shield and primary chain idler. I noticed a huge difference in how smooth the bike transitions from a dead stop, to full clutch engagement, to top speed. Note that I now have a primary chain idler, (engine to jackshaft input) and a final drive chain idler. (Jack shaft output to rear wheel)

[Gdcast]

So that´s how heaven looks!!!
Please show us more!

[skillsthebarber]

what are these things called that the brakes are attached to? I need some of these for my build off bike? thanks