The Rocket III is not only the world’s largest capacity production motorcycle, it’s also a bike without equal. Its unique, fuel-injected, triple cylinder engine has a cubic capacity of 2,294cc – that’s 140 cubic inches – and uses massive, 101.6mm diameter pistons. It makes 147ft-lbs of torque at 2,750rpm. This incredible output means even two-up the Rocket III accelerates incredibly hard without obvious effort, and relentless forward motion is just a slight twist of throttle away.
Twin butterfly valves for each throttle body are used to give precise control over the engine and this set-up allows the ECU (Electronic Control Unit) to vary the mixture flow and ignition map dependent on gear selected and road speed. The torque curve is thus tailored specifically for each gear ratio. And the result is impressive – over 90% of the engine’s prodigious torque output is available at just 2000rpm, giving incredible levels of flexibility and making the five-speed gearbox (nearly) redundant. New for 2006 is the black finished engine.
Price: Auction
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Location: Connellsville, Pennsylvania, United States
