Least expensive way to put spokes on your Speedmaster is to offer to trade all the parts with an America owner, including all the brake parts needed to run the dual discs (right fork leg, right caliper and master cylinder, primarily, along with the wheels). I bet someone would go for it.
When I put the TBS dual disc wheel on my TBA, I was looking at $620 for the brake upgrade kit. But I was able to swap parts with a Speedmaster owner and it saved me a bundle.
