It appears you're interested in specifications for the Honda GB 250 Clubman. This Sport touring model is powered by a Single cylinder, four-stroke engine with 249.00 ccm (15.19 cubic inches) of actual displacement before compression. Fueling is metered via Carburettor. Twin Keihin 28.5mm allowing this machine to produce its 30.00 HP (21.9 kW) horsepower and torque. According to our records engine heat of the Honda GB 250 Clubman is moderated by Air. You'll need to get familiar with the 6-speed transmission and pay attention to final drive Chain maintainence. Our best information shows that the front tire size is 90/90-18 and the rear is 110/90-18 . 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 Single disc. 2 piston front brakes and Expanding brake (drum brake) rear brakes. The Honda GB 250 Clubman was launched in 1985, 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.