Mace Off Road - Clutch Kit With Heavy Duty Springs. 

Fits:

 YAMAHA YZ450F 2005–2006

• Includes the full set of friction, Cork separator plates (not inferior paper) and HD springs.
• All kits include Mace off road's steel plates which outlast stock alloy units and prevent heat distortion of Non Dimpled plates.
• Increased flywheel effect of steel plates improves power spread.

Actual kit is in photo.

Ships quick!