David
The levers on the front brake plate appear longer than usual. Is this effective? Are they available or did you make them?
They are relatively easy to make. 1/4" plate. Cut the rough strip and place the serrated steel washer in a press to impart the imprint in the plate. As long as it is full depth I have not had one slip. Finish and install. the cable attachement is a bent piece of flat SS with a keyhole slot for the cable end. I safety wire it so the cable cannot come free.
The pivot to pull distance is 3.37" if I remember correctly. I have forgotten what the stock one is. If you go longer remember your lever will come closer to the bar as you do so. Make the cable stout. For racing I do not use the brakes much out of habit, but they work well. I could not get the brakes to work properly with the sping as installed in the photo. I took it off and the brakes worked perfectly. These are the 8" brakes.
David