When a new clutch kit is installed the flywheel must be either replaced or ground. This is because excessive heat from normal driving changes the structure of your flywheel surface which creates less friction affecting the performance of your clutch. If this is not done common issues experienced are shudder and or slipping after installing the new clutch kit.

Why grind when you can replace?

There are three main technical reasons to replace a conventional flywheel instead of grinding it.

1. Issues caused by a bad grind. There are various issues that can come out of a poor grind, these include;  (a) Flywheel surface being too smooth which can cause shutter or slipping. (b) Incorrect flywheel step or recess ground; in the case where a flywheel is not flat the recess or step must be maintained. Failure to do this can cause engagement or disengagement issues.
2. Risk of catastrophic failure; in situations where the flywheel is placed under extreme heat damage can occur to the steel microstructure weakening the flywheel which can lead to cracking or destruction of the flywheel.
3. Decreasing the overall stack height. Modern actuation systems have limited bearing height adjustment so after 2-3 grinds the overall stack height of the clutch system can be reduced enough to cause disengagement issues.

Featuring:

• Patented ER² High Torque SGI Cover Assembly
• Aramid Dual Friction Clutch Plate

This kit includes:

• 4Terrain ER² patented heavy duty cover assembly 
• 4Terrain Aramid Dual Friction, High Torque, Clutch Plate
• Release Bearing 
• Spigot Bearing 
• Alignment Tool