Description:\n\nCondition: 100% Brand New\n\nMaterial: Metal\n\nColor: As picture\n\nSize: As the picture shows\n\nNote:\n\n1.Instruction is not included, professional installation is highly recommended.\n\n2.Please check the size measurement chart carefully to ensure it's the right item you need before making payment.\n\n3.Please allow 0.5-1.0cm difference due to manual measurement.(1 cm=0.3937'').\n\n4.The color of the actual items may slightly different from the listing images due to different computer screen, thanks for your understanding.\n\nPlease check the product description and pictures carefully before your purchase to ensure it's the correct part you need!\n\nRemarks : Please leave a message if you need other sizes\n\nPackage List: With a spare Chain Ring X 1 Piece\n\n420 Chain X1 Piece\n\n