Here is the rear master cylinder installed on the K3 frame. The next step is to alternate the brake pedal to actuate the master cylinder.
I am planning to cut the tube on the frame - about where the red line is - to be able to add a lever to the brake pedal. As far as I can think it through, there are three ways to address it:
1. Weld a piece of pipe on the end of the brake pedal grooved section and weld the piston lever to it. Probably the easiest, not sure if it will turn out decent enough. The plus is that I could reuse the return spring from K without much problem.
2. Make on a lathe a brand new piece of tube with inner groves and weld pedal to it on the front and brake piston arm on the back. Not sure how to make inner grooves at home or where to outsource it to - like EDM maybe? Technically clean solution, no doubts, basically number one without the aligining of the pedal and the new tube.
3. Throw out the old groved pin and make a completely new pin, weld lever nad pedal to it and secure it on the back side of the bike frame.
This is a clean solution, although I would have to figure out the where and how to mount the return spring.
Also no matter what, the pedal will be alternated and than what - the original chrome is pretty bad - but I will have to do something with it on the end. Have it chromed is one option, than I could do this gun ceramic coating and bake it in the oven, that's supposed to stand to abuse.
The second picture is a mockup of the lever I will need there.
Any insight would be greatly appreciated.
Thanks
