It appears you're interested in specifications for the Harley-Davidson Dyna Switchback. This Touring model is powered by a Air-cooled, Twin Cam 103™ V2, four-stroke engine with 1690.00 ccm (103.12 cubic inches) of actual displacement before 9.6:1 compression. Fueling is metered via Injection. Electronic Sequential Port Fuel Injection (ESPFI) allowing this machine to produce its 75.10 HP (54.8 kW) horsepower and 126.00 Nm (12.8 kgf-m or 92.9 ft.lbs) torque. According to our records engine heat of the Harley-Davidson Dyna Switchback is moderated by Air. You'll need to get familiar with the 6-speed transmission and pay attention to final drive Belt maintainence. Our best information shows that the front tire size is 130/70-B18 and the rear is 160/70-B17 . 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 Double disc. 4-piston fixed. ABS. front brakes and Single disc. 2-piston torque-free floating. rear brakes. The Harley-Davidson Dyna Switchback was launched in 2015, 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.