Frame Modifications

 

 

One of the first things I have had to do is make a few frame modifications. There were interference issues when the bike was converted to a 7 speed freewheel, and also I have decided to run fatter 26x1.4 Michelin slicks on borth front and back wheels. This required some grinding of the metal to make room, and re-welding to maintain the structural integrity. So I hit the frame with a 4" grinder and later enlisted the welding services of my friend David Wright (DAW in some circles). David has helped me with welding projects in the past, including Robot Wars building many years ago. It was like old times, but this time i also got a dinner out of it from his wife, Eva. (Thanks, Eva!) I should also note that Eva herself has helped me with sewing projects like Zoo Beans prototypes - but I begin to digress. They are truly a helpful pair.

These are pretty simple modifications, but will pay off down the line, with more gear selection and cushier, more reliable tires. The brake bridge in the picture was originally placed there to fit a 26x1.25" tire, and no bigger, to allow for a short reach caliper brake. But we soon realized that for a vehicle this size and weight, drum brakes were necessary to safely control the speed on descents.

 

Also added a bracket for the stoker seat, which I have yet to design the adjusting mechanism for. The original seat was fixed for a 5'7" average rider - so I'll need to make it adjustable to fit Alicia's 5'2" frame.

Next step: Painting!