Precision Springs: Our custom primary and secondary springs improve back-shifting and hold peak RPM without the "fade" commonly experienced with weak factory springs

Polaris 3 Degree PN: BMP-TK10

Huge torque gains

Available in high temp black or ceramic chrome

Spider Shims / Arctic Cat Category_Default Category/SLED/Polaris/Matryx BOOST Precision Springs: Our custom primaryShim fits most Arctic Cat models up to 2015 WIll not fit the 2016+ team clutch Moves the spider around for more or less belt to sheave clearance Smooths engagement Must be installed with special tools by a qualified tech Choose your shim after reading the below description 05 SHIM 7040 : Primary clutch spider shim to be used on Cat 1100 Turbo. This shim will help the clutch grab the belt better on the holeshot. It will also make the clutch engage