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spiderpie
eraser215
edscoble
Hi Spiderpie! Nice build. I saw your pic and read the description of your brake problem and thought i'd post here for the first time...
I think your cable housing from the rear braze-on to the rear brake noodle is way too long. The excessive length forces the housing and cable to bend up from the braze-on, and then the brake noodle is pushed way too far back, again creating a needlessly large angle.
My suggestions are:
Disconnect the brake cable from the rear brake and pull the cable back through the noodle and rear section of housing. Hold the cable, pull the brake, and then release it. If you can still feel that "unresponsiveness" and "lumpiness" the problem is in the cabling at the front. If not, then it's somewhere near the back.
Regardless of the outcome of item 1, I would still significantly shorten the length of the housing at the rear (maybe by half!) to smooth out the path for the cable as much as possible.
I hope this helps, and I'm looking forward to hearing the results!