Features1Smoothly Shift: This 9 speed bike chain adopts outer chamfer design, which can prevent the teeth from interfering with the chain and can shift more smoothly. 29 Speed: Bicycle chain is applicable to all types of 9 speed, 2x9 speed and 3x9 speed transmission system. Suitable for most bicycles, mountain bikes, road bikes, etc. 3High Rigidity: The bicycle chain is embedded with a high strength chain shaft and a high rigidity reinforced structure, which is tight, flexible and not stuck, and can withstand high treading force. 4Alloy Steel: Bike speed chain is made of alloy steel with high hardness and high strength, rustproof, durable, greatly enhancing service life of your bike. 5Simple Installation: This bike replacement chain can be installed easily, and is a great choice for light weight matching or long distance riding.SpecificationItem Type: 9 Speed Bike ChainMaterial: Alloy SteelGross Weight: 340g / 12.0ozPackage List1 x 9 Speed Bike Chain2 x Chain Link Connector1 x Storage Box