Designed for Stock Tires0-3000' ElevationBetter low end and midrange accelerationQuicker backshift which results in better throttle responseReduces belt slip and clutch heatTools required for installation: Clutch Compression Tool #3803-0024Items needed from dealer: Internal Clutch Cover Gasket #11495-LDB5-E00 and 2-3 quarts Kymco motor oil