Electra Townie - First Motorized Bike Build

[twojs]

This is my first motorized bike build. I am a fairly experienced bike mechanic. I know very little about small engines. Thanks for having me.

My plan is to start with this Electra Townie. I picked it over a beach cruiser, because I like the geometry and upright seating position and I wanted either V-Brakes or disc brakes.

As you can see the frame is stretched. I need a little help with the motor mounts. I have been searching around and I found a few CNC motor mounts that may work. However I have two concerns:

1) my downtube is 44.3mm diameter and the seat tube is 35mm diameter. None of the CNC mounts seem to match. I have found mounts with 42.5 ID and and 38.1mm. They look like this:

2) Because the frame is stretched, I am unable to determine if these will be long enough:

I have two engine kits to choose from already.

 

[twojs]

It looks like @MacZulu did this with a Townie. Not sure if he is still around?

Electra Townie Balloon 7D with 2 Stroke

So here is the ever morphing townie with a 2 stroke, these are the latest pics. although it has a different carb on it now. I am breaking in a new engine, it's been alot of work up to this point. changed the front end including the handlebars, seat, added rack, custom engine mount of course, I...

motoredbikes.com

 

[Sidewinder Jerry]

Can you weld and fabricate parts?

 

[twojs]

Can you weld and fabricate parts?

Unfortunately no. I do a lot of bicycle modifications and really need to buy some equipment and learn.

 

[Johnny_]

It looks like @MacZulu did this with a Townie. Not sure if he is still around?

Electra Townie Balloon 7D with 2 Stroke

So here is the ever morphing townie with a 2 stroke, these are the latest pics. although it has a different carb on it now. I am breaking in a new engine, it's been alot of work up to this point. changed the front end including the handlebars, seat, added rack, custom engine mount of course, I...

motoredbikes.com

Last seen 2019, so probably not.

If you can weld then you can just come up with something like he did.

 

[Sidewinder Jerry]

Unfortunately no. I do a lot of bicycle modifications and really need to buy some equipment and learn.

In the majority of builds, seldom do things fit together perfectly. Usually modifications are needed to make builds work.

 

[Johnny_]

If you can weld then you can just come up with something like he did.

Woopsies lol that's what happens when ya don't reload the page.

 

[twojs]

Last seen 2019, so probably not.

If you can weld then you can just come up with something like he did.

No problem. I don’t really understand what he did. I am not opposed to investing in new tools and equipment. That is part of the fun!

 

[twojs]

I also could find a different frame for my first build and save this until I get things more figured out.

 

[Johnny_]

I also could find a different frame for my first build and save this until I get things more figured out.

Ok sooo... that may be a good idea. Definitely learn welding and all lol, but if you just wanna get this thing running then a different bike may be the way to go for now.