Parts › GREEVES CHALLENGER 24MX4 & 250 GRIFFON 70MM +40 DYKES TOP PISTON RING PART NUMBER G1383 Image 1 of 2 Image 2 of 2 GREEVES CHALLENGER 24MX4 & 250 GRIFFON 70MM +40 DYKES TOP PISTON RING PART NUMBER G1383 £10.00 1X OLD STOCK PISTON RING.RINGS SHOULD ALWAYS HAVE THERE GAP CHECKED IN CYLINDER BORE Add To Cart Added! 1X OLD STOCK PISTON RING.RINGS SHOULD ALWAYS HAVE THERE GAP CHECKED IN CYLINDER BORE