2 Stroke Single Twin valve power valve, 6 gear, chrome-molybenum steel frame, front & rear adjutable WP suspension.The 300 XC has 1 of the best power-to-weight ratios in it's class. 2-stroke engine. For 2016 the 300 XC features detail improvements and new colors and graphics, but basically retains the same chassis and engine specification as 2015.