It appears you're interested in specifications for the Honda CB 550 Four K. This Classic model is powered by a In-line four, four-stroke engine with 548.00 ccm (33.44 cubic inches) of actual displacement before compression. Fueling is metered via Carburettor allowing this machine to produce its horsepower and torque. According to our records engine heat of the Honda CB 550 Four K is moderated by Air. You'll need to get familiar with the 5-speed transmission and pay attention to final drive maintainence. Our best information shows that the front tire size is and the rear is . The entire package is supported by the frame, Steel Tube. We know you like to go fast or cruise all day, but when you need to stop, you'll be dependant on Single disc front brakes and Expanding brake (drum brake) rear brakes. The Honda CB 550 Four K was launched in 1973, 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.