but also have a small amount of cushioning betwene the two friction surfaces on the disc giving them better pedal modulation

Positive Seal O-Ring on the Piston's face and Billet Construction

setting new standards for performance

an O-ring is not needed to create an effective seal

providing a pressure source to a vacuum port

Clutch Kit - Xtreme Performance Heavy Duty Organic 190Nm KHN22025-1A Ventiler but also have a smallXtreme Performance sprung organic kit 1A Recommended for: Street use in vehicles with minor engine modifications. Sprung organic clutch kits offer exceptional driveability for vehicles used daily but also have performance modifications. The sprung organic disc offers improved dampening which reduces the shock loading on the transmission. Specifications: Torque capacity 190Nm Clamp load Increased over standard Organic Friction Discs Heavy Duty Pressure