It appears you're interested in specifications for the Husqvarna FE 501s. This Enduro / offroad model is powered by a Single cylinder, four-stroke engine with 510.4 ccm (31.14 cubic inches) of actual displacement before 12.2:1 compression. Fueling is metered via Carburettor allowing this machine to produce its horsepower and torque. According to our records engine heat of the Husqvarna FE 501s is moderated by Liquid. You'll need to get familiar with the 6-speed transmission and pay attention to final drive maintainence. Our best information shows that the front tire size is 90/90-21 and the rear is 140/80-18 . The entire package is supported by the frame, Central double-cradle-type 25CrMo4 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. Magura. Wave disk. front brakes and Single disc. Magura. Wave disk. rear brakes. The Husqvarna FE 501s was launched in 2021, 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.