It appears you're interested in specifications for the Norton Commando 961 Sport Mk II. This Classic model is powered by a Push-rod valve actuation, 3 bearing crank and balancer shaft. Twin, four-stroke engine with 961.00 ccm (58.64 cubic inches) of actual displacement before 10.0:1 compression. Fueling is metered via Injection allowing this machine to produce its 80.00 HP (58.4 kW) horsepower and 90.00 Nm (9.2 kgf-m or 66.4 ft.lbs) torque. According to our records engine heat of the Norton Commando 961 Sport Mk II is moderated by Air. You'll need to get familiar with the 5-speed transmission and pay attention to final drive Chain maintainence. Our best information shows that the front tire size is 120/70-17 and the rear is 180/55-17 . The entire package is supported by the frame, Steel tubular with integral oil tank.. We know you like to go fast or cruise all day, but when you need to stop, you'll be dependant on Double disc. Brembo system, twin semi-floating hi carbon stainless steel discs, Brembo 4 piston “Gold Line” axial callipers front brakes and Single disc. Brembo system, 2 piston “Gold Line” calliper rear brakes. The Norton Commando 961 Sport Mk II was launched in 2016, 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.