Features： 1、HIGH RIGIDITY: The bike chain has a reinforced shaft, and the concave surface is embedded in a high rigidity compact structure, which has high tensile strength and can be used for a long time. 2、SUPER DURABILITY: 9 speed chain actual detection speed chain breaking force: 9537N, ejection force: 1801N, the chain is flexible, will not be stuck, and can withstand large pedaling force. 3、FLEXIBLE AND STABLE: Chain length of 116 links is conducive to the subsequent upgrade of the transmission system. Double bridge type, tensile and torsion resistant, sensitive and stable in speed change. 4、HIGH PERFORMANCE: Waist of the 9 speed chain is chamfered, which is anti rust, anti corrosion, wearable and durable. The tooth tips engage quickly with the chain link, improving stability and safety. 5、ELECTROPLATING PROCESS: The surface of the 9 speed bike chain is treated by electroplating process, including the inner and outer plates and pins, which is not easy to rust and has stable shifting. Specification： Item Type: Bike Chain Material: Carbon Steel Shaft Length: Approx. 6.6mm/0.26in Applicable Models: Most Mountain Bikes, Road Bikes, Folding Bikes, etc Applicable Speed Models: 9, 27 Speed Models Package List： 1 x Bike Chain 2 x Chain Connector