It appears you're interested in specifications for the Suzuki DR-Z400E. This Enduro / offroad model is powered by a 4-valve cylinder head with 36mm intake valves, 29mm exhaust valves, narrow 28º included valve angle and shim-under-bucket valve adjustment system. Single cylinder, four-stroke engine with 398.00 ccm (24.29 cubic inches) of actual displacement before 12.2:1 compression. Fueling is metered via Carburettor. Keihin™ FCR39. 6-liter airbox, allowing this machine to produce its horsepower and torque. According to our records engine heat of the Suzuki DR-Z400E is moderated by Oil & air. You'll need to get familiar with the 5-speed transmission and pay attention to final drive Chain maintainence. Our best information shows that the front tire size is 80/100-21 and the rear is 110/100-18 . The entire package is supported by the frame, Chrome-moly steel. 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 Suzuki DR-Z400E was launched in 2011, 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.