1、HIGH RIGIDITY: Bike chain shaft reinforcement, concave cover embedded in high rigidity compact structure, high tensile strength, flexible chain, able to withstand high pedal force. 2、116 LINKS: The chain length of the 116 link provides additional reserves for subsequent upgrades to the transmission system. Bike chain is anti rust, anti corrosion, wear resistant, durable. 3、DOUBLE BRIDGE TYPE: The double bridge carbon steel bike chain improves the tensile and torsional strength of the chain, and the speed change is sensitive. 4、HIGH PERFORMANCE: Durable bike chain is designed with chamfered waist, the tip of the tooth engages with the chain piece quickly, greatly improving stability and safety. 5、ELECTROPLATING PROCESS: Bike chain cover is treated by electroplating process, not easy to rust, stable variable speed, inner and outer plates and pins are electroplated. Item Type: Chain Connector Material: Carbon Steel Suitable Models: Most of the Market Mountain Bikes, Road Bikes, Folding Bikes, Etc. Applicable Speed Models: For 6 7 8 18 21 24 Speed Models Axle Length: Approx. 7.2mm/0.3in Pulling Force: 9537N Ejecting Force:1801N Chain Flexibility 1 x Chain 2 x Chain Connector