Features 1、Manganese Steel Bike Chain: The bicycle chain is made of high rigidity manganese steel with high abrasion resistance, ensuring long term use. 2、High Efficiency Transmission: The chain provides highly efficient pedaling force transmission and stable motion energy transmission, continuously maintaining a high transmission rate. 3、Chain Link Tight Connection: The parallel riveting treatment process closely combines the links. It is a more robust and durable connection method, allowing the chain to withstand the mechanical destructive force of pedaling under high speed and rapid shifts. 4、Lightweight Bike Chain: The precise designed hollow structure of the inner and outer links reduces the overall weight while maintaining the same strength. It is the perfect choice for pursuing lightweight or long distance riding. 5、Mud Removal Design: Hollow mud drain hole design, which is convenient for mud discharge, reducing dirt accumulation and easier to clean and maintenance. Specification Item Type: 12 Speed Bike Chain Product Model: F12 Material: Manganese Steel Product Color: Silver Product Weight: Approx. 290g / 10.2oz Variable Speed: 12 Speed Pin Joint Strength: 200kg / 441lbs (Minimum Standard) Tensile Strength: 980kg / 2160lbs Number Of Links: 126 Links Package List 1 x Bike Chain 2 x Quick Split Chain Link