Parts › GREEVES CHALLENGER 24MX4 & 250 GRIFFON 70MM +50 DYKES TOP PISTON RING PART NUMBER G1387 Image 1 of 4 Image 2 of 4 Image 3 of 4 Image 4 of 4 GREEVES CHALLENGER 24MX4 & 250 GRIFFON 70MM +50 DYKES TOP PISTON RING PART NUMBER G1387 £10.00 1X OLD SHOP STOCK. PISTON RING.RINGS SHOULD ALWAYS HAVE THERE GAP CHECKED IN CYLINDER BORE Quantity: Add To Cart Added! 1X OLD SHOP STOCK. PISTON RING.RINGS SHOULD ALWAYS HAVE THERE GAP CHECKED IN CYLINDER BORE