Parts › GREEVES/VILLIERS 250 66MM +40 TOP DYKES PISTON RING GREEVES PART NUMBER G1073 Image 1 of 2 Image 2 of 2 GREEVES/VILLIERS 250 66MM +40 TOP DYKES PISTON RING GREEVES PART NUMBER G1073 £10.00 DYKES PISTON RING (piston ring gap should always be checked in bore) Quantity: Add To Cart Added! DYKES PISTON RING (piston ring gap should always be checked in bore)