It appears you're interested in specifications for the Triumph Rocket III Roadster. This Naked bike model is powered by a In-line three, four-stroke engine with 2294.00 ccm (139.98 cubic inches) of actual displacement before 8.7:1 compression. Fueling is metered via Injection. Multipoint sequential electronic fuel injection with twin butterflies and progressive linkage on primary butterflies allowing this machine to produce its horsepower and 221.00 Nm (22.5 kgf-m or 163.0 ft.lbs) torque. According to our records engine heat of the Triumph Rocket III Roadster is moderated by Liquid. You'll need to get familiar with the 5-speed transmission and pay attention to final drive Shaft drive (cardan) maintainence. Our best information shows that the front tire size is 150/80-R17 and the rear is 240/50-R16 . The entire package is supported by the frame, Frame Tubular steel, twin spine. Twin-sided, steel (houses drive shaft) swingarm.. We know you like to go fast or cruise all day, but when you need to stop, you'll be dependant on Double disc. Nissin 4-piston fixed calipers, Nissin ABS system front brakes and Single disc. Brembo 2-piston floating caliper, Nissin ABS system rear brakes. The Triumph Rocket III Roadster was launched in 2010, and we're happy to know (or assume) you've got one in your garage. To help you keep your ride in tip-top shape, consider purchasing an owner or service manual.