Across the board, the SX-F bikes have significant chassis, suspension, and motor updates. The frame is new, and KTM says it’s 20 percent stiffer torsionally while having a steeper steering head angle and a shorter wheelbase for improved handling. Complementing the new frame is a shorter and lighter subframe, plus a revised swingarm with new flex characteristics. The WP 4CS fork carries over from the previous year, but with revised settings. In the rear, the shock and linkage are new, designed to work more harmoniously with the revised chassis. KTM says these changes make these 2016 models lighter and more compact, which improves handling. The engines, for the record, have also been updated with more compact cases, revised combustion chambers and ports, plus new Keihin engine management with 44mm throttle bodies. KTM says these changes improve power, performance, and overall durability.