It appears you're interested in specifications for the Beta Evo 300 4T. This Trial model is powered by a Single cylinder, four-stroke engine with 297.3 ccm (18.14 cubic inches) of actual displacement before 11.0:1 compression. Fueling is metered via Carburettor. Mikuni allowing this machine to produce its horsepower and torque. According to our records engine heat of the Beta Evo 300 4T is moderated by Liquid. You'll need to get familiar with the 5-speed transmission and pay attention to final drive maintainence. Our best information shows that the front tire size is 2.75-21 and the rear is 4.00-18 . The entire package is supported by the frame, Single wave aluminium beam. 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 caliper front brakes and Single disc. 2 piston caliper rear brakes. The Beta Evo 300 4T 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.