EVO Polaris Xpedition Tapp Roller Primary Clutch

EVO Polaris Xpedition Tapp Roller Primary Clutch

Don't think a TAPP clutch can be any smoother and more responsive than it already is? Think again. The all-new Roller Spider design for TAPP Primary Clutches replaces the original button spider assembly for instant power delivery due to the reduction in friction between the spider and movable sheave. This results in even better belt grip than before, lower belt temps, better belt life, and buttery smooth engagement that's guaranteed to keep your car dialed in any riding condition. The patent-pending TAPP Roller Primary Clutch is the next revolution in clutching technology.

Features:

• Roller Spider Design: creates less friction in the movable sheave compared to button spiders for a much more responsive setup
  
• Center Bearing: New black nitrate coating (black finish) adds an extra layer of hardness, prevents rust corrosion, and reduces friction for even smoother clutch operation
  
• Larger Roller: roller size has been increased from 2mm to 3mm, making a huge difference in longevity of the clutch bearing particularly under high horsepower and harsh conditions
  
• Post: updated with additional material and new heat-treating process, allowing the clutch to be over-torqued from factory specs by preventing the clutch from slipping on the shaft (necessary for high-horsepower builds and/or drag racing setups)
  
• Moveable Sheave: added material with the new roller spider design, reinforcing the clutch towers for greater load-bearing capabilities
  
• Clutch Cover: the billet aluminum clutch cover now features larger "windows" to allow additional weight without having to modify the clutch cover.