It appears you're interested in specifications for the Lambretta 125LD Series 3. This Scooter model is powered by a Single cylinder, two-stroke engine with 125.00 ccm (7.63 cubic inches) of actual displacement before 6.3:1 compression. Fueling is metered via Carburettor. DellÓrto allowing this machine to produce its 5.00 HP (3.6 kW) horsepower and torque. According to our records engine heat of the Lambretta 125LD Series 3 is moderated by Air. You'll need to get familiar with the 3-speed transmission and pay attention to final drive maintainence. Our best information shows that the front tire size is 8-Apr and the rear is 8-Apr. The entire package is supported by the frame, Tubular steel. 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 Lambretta 125LD Series 3 was launched in 1957, 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.