It appears you're interested in specifications for the KTM 790 Duke Prototype. This Prototype / concept model model is powered by a Twin, four-stroke engine with 790.00 ccm (48.21 cubic inches) of actual displacement before compression. Fueling is metered via Injection allowing this machine to produce its horsepower and torque. According to our records engine heat of the KTM 790 Duke Prototype is moderated by Liquid. 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 and the rear is . The entire package is supported by the frame, Chromium-Molybdenum steel trellis frame, powder coated. 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 KTM 790 Duke Prototype was launched in 2017, 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.