It appears you're interested in specifications for the Norton Commander. This Touring model is powered by a Dual disk Wankel engine with 588.00 ccm (35.88 cubic inches) of actual displacement before 9.0:1 compression. Fueling is metered via allowing this machine to produce its 85.00 HP (62.0 kW) horsepower and torque. According to our records engine heat of the Norton Commander is moderated by Liquid. 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 100/90-18 and the rear is 120/90-18 . 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 Dual disc front brakes and Single disc rear brakes. The Norton Commander was launched in 1991, 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.