Tenaci backplate flywheel balanced with starter gear.
Fits BMW M50, M52, M54 & S54
3 options of backplates:
184mm with 3 stepdown, same bolt pattern as Tilton 7,25"
200mm with 3 stepdown, same bolt pattern as Sachs 200mm
240mm with 1,5mm stepdown, same bolt pattern as Sachs 765