It appears you're interested in specifications for the Jawa 640 Style 350. This Naked bike model is powered by a Twin, two-stroke engine with 343.00 ccm (20.93 cubic inches) of actual displacement before compression. Fueling is metered via allowing this machine to produce its 23.60 HP (17.2 kW) horsepower and 38.20 Nm (3.9 kgf-m or 28.2 ft.lbs) torque. According to our records engine heat of the Jawa 640 Style 350 is moderated by Air. You'll need to get familiar with the 4-speed transmission and pay attention to final drive Chain 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 Single disc front brakes and Expanding brake rear brakes. The Jawa 640 Style 350 was launched in 1996, 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.