We sampled Michael Barnes' back-up bike just before the AMA National at Road America in June. The engine is essentially stock, except for a race-kit exhaust, ECU and Suter slipper clutch. Chassis changes include a chain-drive swingarm conversion, Öhlins TTX shock and Öhlins 25mm cartridges in the stock fork legs. Magnesium wheels, fiberglass bodywork and a race subframe and fairing bracket help shave almost 100 pounds-"close enough" to the mandated 380-pound minimum. All of these parts are available over the counter, and Morris reckons you could roll your own replica for under $30K.