It appears you're interested in specifications for the Harley-Davidson Model W Sport Twin. This Allround model is powered by a Two cylinder boxer, four-stroke engine with 584.00 ccm (35.64 cubic inches) of actual displacement before 5.8:1 compression. Fueling is metered via Carburettor allowing this machine to produce its horsepower and torque. According to our records engine heat of the Harley-Davidson Model W Sport Twin is moderated by . You'll need to get familiar with the transmission and pay attention to final drive Shaft drive (cardan) maintainence. Our best information shows that the front tire size is 26-Mar and the rear is 26-Mar. The entire package is supported by the frame, . We know you like to go fast or cruise all day, but when you need to stop, you'll be dependant on front brakes and rear brakes. The Harley-Davidson Model W Sport Twin was launched in 1924, 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.