It appears you're interested in specifications for the Vincent HRD Series B Rapide. This Allround model is powered by a 50degree V-twin V2, four-stroke engine with 998.00 ccm (60.90 cubic inches) of actual displacement before 6.8:1 compression. Fueling is metered via Carburettor. Amal allowing this machine to produce its 45.00 HP (32.8 kW) horsepower and torque. According to our records engine heat of the Vincent HRD Series B Rapide is moderated by . You'll need to get familiar with the transmission and pay attention to final drive Chain maintainence. Our best information shows that the front tire size is and the rear is . 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 Expanding brake (drum brake) front brakes and Expanding brake (drum brake) rear brakes. The Vincent HRD Series B Rapide was launched in 1948, 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.