2010-2012 Arctic Cat 450 H-1 models, 2011-2012 Arctic Cat 425 4X4, 2013+ Arctic Cat 500, (and 2011-2012 Kymco MXU 450.) Stock and oversized tires.

Better bottom and mid performance. This is a simple, effective clutch re-calibration kit that helps the cvt system respond better to load conditions, such as soft terrain and climbing. There are adjustments and settings in the instructions to set it up for stock or oversized tires.