It appears you're interested in specifications for the Hartford HD125S. This Sport model is powered by a Single cylinder, four-stroke engine with 124.00 ccm (7.57 cubic inches) of actual displacement before 9.0:1 compression. Fueling is metered via Carburettor allowing this machine to produce its 12.73 HP (9.3 kW) horsepower and 6.90 Nm (0.7 kgf-m or 5.1 ft.lbs) torque. According to our records engine heat of the Hartford HD125S is moderated by Air. 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 2.75-18 and the rear is 3.50-16 . 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 Single disc rear brakes. The Hartford HD125S was launched in 2008, 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.