For what it's worth, my '05 Speedmaster valves were just slightly worn outside of spec at around 17,000 miles.
I'm off to Gengras Triumph in Hartford, CT for an oil pipe O ring and some valve shims, both of which they have IN STOCK. The parts guy said: "Bring a micrometer, as the stamped shim sizes may not be exact... a Triumph dealer with parts on hand, that knows about shim markings. Me likey. This is the second of two transactions with Gengras where they had the Triumph parts on hand. The first was for rear brake pads, which I wanted JIT as it was a warm weather brake job, and so I paid a little more than aftermarket linings jut so the downtime would be minimal.
