It appears you're interested in specifications for the Harley-Davidson Dyna Street Bob Special. This Custom / cruiser 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. ESPFI allowing this machine to produce its horsepower and torque. According to our records engine heat of the Harley-Davidson Dyna Street Bob Special 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 100/90-B19 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 Single disc. 4-piston fixed front brakes and Single disc. 2-piston torque-free floating rear brakes. The Harley-Davidson Dyna Street Bob Special was launched in 2016, 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.