Flywheel Volvo B230 integrated starter ring - Modular Billet CNC-milled Flywheel for Volvo red engine, balanced, 8-bolt with trigger ring and integrated starter ring. Modular flywheel that allows you to choose 184, 200 or 240mm clutch. On the flywheel pressure plate fits Sachs 618, Sachs 765 and ACT. It has a compressed center to be able to run with 184mm (7.25") clutch (eg Tilton or ACE Racing clutch). Dimensions: Center hole: 50mm Inner diameter of the lamella contact surface: 130mm Outer diameter of the lamella contact surface: 240mm Outer diameter of starting ring: 300mm Outer diameter of trigger ring: 292mm Dynamically factory balanced in horizontal position without counterweight.