My Frankenstein's Bike

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This project has been through several iterations. I bought two beach cruiser bikes, and welded them together, to make a tandem, with a twist. The twist was that the back person pedaled the back wheel, and the front person, in addition to steering, pedaled the front wheel. This was supposed to make it so that you didn't have to constantly be pedaling in sync, as you do now on purchased tandems. Here was the bike:

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But I believe in recycling my fails, and so I did. Next I tried to use that long frame, which I was proud of, as a cargo bike, but that looked ugly, so I decried that as another fail, and tucked the bike in the corner of the shop, where it remained for months.

Recently, I was thinking of how I have several ideas in my sketch book for things that would be cool on a bike, but these ideas don't require an entire bike to do them, such as my idea for a cool springer front end? How about the idea I have to mount this cool hood ornament on one of my bikes? What about the idea to make my own seat pan? Well, I got to thinking that one bike might be cool for all of this leftover stuff. That would make it a real Frankenstein's Monster of a bicycle, wouldn't it?

So I dusted off that tandem/cargo bike, and cut it down in the middle section a bit, so that the two seat posts are about 8 inches apart. What I was left with was a cruiser that was longer between the seat, and the pedals and handlebars. It looked very patched together, but in a good way. I then named the bike "Frank," since it will act my my Frankenstein of various mismatched ideas.

The first idea I wanted to add to it was that hinted at springer front end I had sketched up in my book in Afghanistan. I had the idea to just get a mountain bike frame that had rear suspension, and use that rear set up as the front of my bike. Well, it wasn't as easy as bolting it on. There was a lot of fabrication to get it to work, grafting it onto the stem of some forks, then making some bracket pieces from scratch, and also narrowing the profile of the whole thing to fit. I think it all came out great, though. I'm really proud of it. To me, it looks like an old Indian leaf-spring front end, so I put on a pair of handlebars upside down, to stay with the old-timey look of it.

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I've already made more progress, but I'll post that in the comments at another time.
 
The mtb springer is one monster cool creation.
 
I bought two pairs of generators and headlights this last weekend at the flea market, and I put one set on the Frank Bike. Here's the generator with built on light in the back.

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That light would work as a headlight, if that was mounted on the front, but I got a more traditional looking light for the front, with a high-beam and everything, so I'll be sliding a red lens in the one pictured there, to make it for the rear.

I then made some radical alterations to the handlebars. First, I cut it in half, and welded on a piece in the center to make the bars wider. I did this to make another long-gestating idea possible. I took this big old hood ornament that I bought at a yard sale months ago, and I welded on brackets to mount the hood ornament on the bars.

Now it's looking like a Frankenstein! But wait, there's more! This weekend I also picked up a pair of Harley Davidson foot-pegs for a motorcycle for only a few bucks. What to do with them? Why, cut the handlebars short, and bolt them on as handgrips, of course! Here's a couple shots of the headlight, hood ornament, and new grips:

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So, here's the Frank Bike as it is now. Keep in mind, I'll probably eventually drill a couple of small holes to hide the wire in the frame.

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Very Cool!!!! 8) :mrgreen: I like how you reused MTB rear suspension and made a very cool springer out of it ,Great work!!!!!
 
In anticipation for the upcoming Hooligans New Year's Day ride, I took a queue from a pic I saw on here, and added a set of rear stays to the back, dropping the back end. It made it too low, and I had to cut and weld the cranks to 4 1/2", instead of the 6" I had. I then added a smaller front sprocket to compensate for pushing all this weight. It's still very comfortable. I then painted the frame a quick gloss black, put on the white tires.

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Looks really Cool,great job!! 8) :mrgreen:
 
Can u get a close up of the top mounting bracket. What are the hole sizes in the plate, the length of plate/tubing and what is thickness of the bottom plate. I have been wanting to build a girder for some time and that is the simplest solution I ever seen.
 
Added the white painted pedals that I got paid forward from Schwinnray, added a bell to the handlebars, added a color appropriate seat, added a great red band Bendex 2 speed kickback hub, and made a bracket to put a kickstand on the back axle. I welded on the foot to the kickstand, which was the old brake pedal from my motorcycle.

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ratcycle said:
Can u get a close up of the top mounting bracket. What are the hole sizes in the plate, the length of plate/tubing and what is thickness of the bottom plate. I have been wanting to build a girder for some time and that is the simplest solution I ever seen.

I'll try to remember some close ups. I did not make those brackets on top. The suspension had this kind of lever system to it, and those brackets were part of that system. I bent the ends of the brackets, narrowed the gap between the arms, and welded it together as a solid triangle. I wish I had taken some before pictures, but I wasn't a member of the site yet, and it never occurred to me that someone might wonder how I did it. :)
 
Sweet bike Deven! :D Perect mix of black and white :wink: Glad you like the pedals :mrgreen:
 

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