This center cap originally fits: JR10 (15")

Clamp load 540Kg 40% Increased over standard

This IWG actuator has it all

Base Spring Options of 3 and 5 PSI

Clamp load 1020kg Increased over standard

Clutch Kit - Xtreme Performance Heavy Duty Sprung Ceramic 570Nm 800kg (35% inc.) KNI24003-1B JR38 This center cap originally fits:Xtreme Performance sprung ceramic kit 1B Recommended for: Motorsport ApplicationsThese kits are available with sprung ceramic friction discs and are designed for motorsport applications where higher heat and torque capacity is required. These can also be used in some road applications. Specifications: Torque capacity 570Nm Clamp load 800kg 35% Increased over standard Sprung Ceramic Friction Disc Heavy Duty Pressure Plate Kit contains everything you