It appears you're interested in specifications for the Honda Smart Dio Z4. This Scooter model is powered by a Single cylinder, four-stroke engine with 49.00 ccm (2.99 cubic inches) of actual displacement before 12.0:1 compression. Fueling is metered via Carburettor allowing this machine to produce its 45.46 HP (33.2 kW) horsepower and 4.80 Nm (0.5 kgf-m or 3.5 ft.lbs) torque. According to our records engine heat of the Honda Smart Dio Z4 is moderated by . 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, . 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 Honda Smart Dio Z4 was launched in 2006, 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.