It appears you're interested in specifications for the Derbi Boulevard 150. This Scooter model is powered by a V2, four-stroke engine with 149.86 ccm (9.14 cubic inches) of actual displacement before 11.0:1 compression. Fueling is metered via Carburettor allowing this machine to produce its 11.50 HP (8.4 kW) horsepower and torque. According to our records engine heat of the Derbi Boulevard 150 is moderated by Air. You'll need to get familiar with the transmission and pay attention to final drive maintainence. Our best information shows that the front tire size is 130/60-13 and the rear is 130/60-13 . 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 (drum brake) rear brakes. The Derbi Boulevard 150 was launched in 2004, 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.