I've also got some thoughts about the torque arm for the brake caliper, and I'm wondering if I can't do away with it altogether by running a pin through that bolt hole and into the swingarm. Offset's a little high, which worries me, big shear load, so maybe the pin plus a tension brace extending to a point further up the swingarm, but still well clear of the tire. Obviously a good solid bar of steel will suffice in place of the existing torque arm, but it would just seem "cleaner" with the caliper fixed right into the swingarm. Hell, in my opinion, shaft drive, the caliper ought to be mounted on the swingarm instead of the axle, since we don't have to adjust the axle for chain tension, but that's more of a change than I can handle.
Anyway, it's gotta happen this week, as the bike's tire is showing the underlayer of rubber, but no cord or steel yet. Won't be long, though.
Thoughts on these tires, anyone?