The rear swing arm, wheel and caliper have arrived! I think the conversion will be pretty simple. Welding a truss that arches over the rear wheel to increase torsional stiffness will probably require cutting the bike frame just behind the middle part where the engine & swing arm mount. Should work out fine. Also, the axle that came with it is bigger than the one that came with my "basket case" so I think it will be fine.
Picked up the Mustang II spindles and a couple of nice wheels to go on them from a wrecking yard. I opted to stay with the 4 bolt hubs since the rotors looked to be in good shape and some decent wheels were available. I plan to rebuild the calipers and replace the wheel bearings & seals.
I plan to separate master cylinders for the front and rear brakes. Balancing will be accomplished with an bar between them that will allow moving that attach point for the linkage to the pedal. The Indy Cycle used Ø5/8 bore cylinders. Out of curiosity, I have put together a spreadsheet that takes into account the area of the brake pads, the arm length from the center of the pad to the axle and the cylinder size difference of the front vs the rear caliper. Also considering the fact that there are two brakes in the front and one in the rear. Ignoring differences stemming from the brake pad materials, I want to get a rough comparison to the front and rear brake system from a purely mechanical standpoint to see what size(s) the two master cylinders should be if I use Ø5/8 bore for the rear one. I am shooting for a 60%/40% front/rear brake balance as an estimate to start with.
