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Justin Shumaker's Kitlog
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Date: 1-27-2014
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Number of Hours: 11.00
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Manual Reference:
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Brief Description: New Brake System
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After taking of the wheel well I became aware of how awful the brake system was, I could have probably added a spring to the top of this mechanism to pull the contoured metal brake toward the wheel well to prevent unnecessary rubbing, however I was not satisfied with that idea. So, I started thinking about the idea of installing a bicycle disc brake, but there was simply not enough room. Instead I adopt a bicycle V brake design. A called up the bike shop at REI and ended up talking to a very knowledgeable technician, Brian. After I arrived at the store in Timmonium I ended up with a zip lock bag full of all the parts I needed to for my new brake system for under $15. Rather than weld to the existing frame I decided to design a bracket that could be adjustable and removeable. So, using GCAM (the CNC software I wrote years ago) I designed the new brackets and spent about 8 hours cutting and drilling in 2 separate passes. Each bracket has a top and bottom with 6 holes for #6 screws and lock nuts. The top of the brackets have M10-1.25 threaded holes for the threaded brake boss. The $15 also included a new brake handle, spring loaded and far superior to the 1970's era one that originally came with the kit. It took me about 3 hours to get the spring tension holes in the right spot and everything in the right location. I tested the new brake and it has significant braking power. I am guessing this will take me from 50mph to 0 in about 20 feet at full braking. It's always a great feeling when an idea turns out the way you expect it to. The wheels were also disassembled, bearings cleaned, bolts cleaned, and discarded the old nuts in favor o newf lock nuts.
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Old Brake System
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New Brake Hardware
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V Brake Installation Complete
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