It appears you're interested in specifications for the Gilera Ekstra 4. This Allround model is powered by a Twin, four-stroke engine with 305.00 ccm (18.61 cubic inches) of actual displacement before compression. Fueling is metered via Carburettor. DellÓrto allowing this machine to produce its 15.00 HP (10.9 kW) horsepower and torque. According to our records engine heat of the Gilera Ekstra 4 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 18-Mar and the rear is 3.25-18 . 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 Expanding brake (drum brake) front brakes and Expanding brake (drum brake) rear brakes. The Gilera Ekstra 4 was launched in 1964, 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.