Fat Tire Bicycle Chopper

graucho · #1 03-18-2009, 04:42 AM

I loved this style of frame from the good people at Home - Choppers U.S., LLC which I bought and chopped it up as a template. I altered the shape slightly for my specific project. They really have beautiful quality frames if anyones interested.

graucho · #2 03-18-2009, 04:44 AM

I collected a front wheel/rim and fork parts. Then found a 10" wide 22" tall rear tire. 12" rim. Also a drawback handlebar.

graucho · #3 03-18-2009, 04:46 AM

Collected Axle parts. Combined with the tire to take a look.

graucho · #4 03-18-2009, 04:47 AM

Had a lifan engine shelved from a few years ago from a smashed minibike. Set the tire an engine in close adjustment to take ruff measurements.

graucho · #5 03-18-2009, 04:48 AM

Built the rear frame to wrap around the fat tire. Built the motor/jackshaft mounting plate. Found a headlight from a kids electric chopper.

graucho · #6 03-18-2009, 04:50 AM

Came up with a jackshaft setup with a freewheel to the pedals. Built a chain tentioner bracket and positioned. I found a kickstand from my old stock.

graucho · #7 03-18-2009, 04:52 AM

Found a embossed flame seat. Which I will be using that color sceme to paint the bike. Found a disk brake and mounted it to take a look. Checked motor mount position. Rebuilt the headlight to handle my 12v set up. Welded a license plate/tail light set up. Welded up a battery tray for my 12v rechargeable setup. Then "fished" all electrical wiring through the frame.

graucho · #8 03-18-2009, 04:54 AM

Pulled the bike down to good old mother earth for the first time to check the tracking and ballance. PERFECT! Peddals like a dream. A few chain links need to removed. Handle bar head neck needs to be spun forward. Handled excellent for being 7ft 11in long. (Wider turns of course) I pulled it next to my daughters car to get a peek what 7ft 11in looks like. After the engine test run is done it will be unassembled completely for painting. Im sure ill need to fine-tune my sprocket ratios for speed concerns. More to follow.

TigerToothBikes.com · #9 03-18-2009, 05:26 AM

holy crapamoly! thats some pure magnificence sitting right there! my last thought was, braking? any idea? if i rode that thing tbraking would literally be the last thought i had!lol

ZnsaneRyder · #10 03-18-2009, 06:14 AM

That's pure excellence right there! I love how you custom machined a hub to fit that 4-lug rim!