SLP Magnum Force Ultra Weights for Polaris Boost Snowmobile Switchback Assault & VR1 Models - 40-174M

This innovative patented weight utilizes a slingshot effect to transfer the Polaris Boost's impressive horsepower to the ground with precision using our industry exclusive mass profile. Its design delays initial shift, allowing the turbo to spool faster and then shifts aggressively, loading the engine and creating more exhaust heat. This improves boost function and generates more usable power quicker.

The way that we have distributed the mass within this weight's design is the secret that creates the improved shifting characteristics. At the tip of the weight is a protrusion we call the Launch Tube. At rest and in low-speed modes, the mass of the Launch Tube is below the line perpendicular to the clutch. The mass located in this area reduces the initial shift force of the weight while the turbo is in naturally aspirated and low boost mode, yet applies that mass as added shift force when it shifts above the perpendicular plane.

This revolutionary new technology replaces the need to use engagement grinds on the weights and extremely high spring rates that are prone to loss of tension and breakage. It also places the appropriate shift force on the belt at all times, proving to be a far superior clutching solution for these Turbo sleds.

This Kit:
- #40-174M Magnum Force Ultra™ (70.5 gram base, 79 gram max) *Switchback Assault / VR1 Boost Models only*

Also available in these sizes:
- #40-170M Magnum Force Ultra™ (67 gram base, 74.8 gram max) *RMK/Slash Khaos Boost Models only*

Please inquire for a recommendation dependent on model and elevation.

Optional: Projected Tip Set Screws (Part #40-158) can be loaded in the tip of the weight where the projected tip extends deeper into the weight. This allows more mass to be added to the tip of each weight and can be a benefit in certain applications and tuning scenarios.