Without making any compromises for rear shifting precision, the PC-870 Chain enhances front and load shifting performance to make for a smooth ride every time. The PowerChain II is exceptionally strong and durable, and the Step2 riveting process amps up these features by increasing the Push Pin Power.The SRAM chain for strong, precise, and smooth shiftingOperates as smooth in the city as on backroads and trailsPowerLink technology lets us insert, press, and lock to join linksStep2 riveting process increases Push Pin strength and durabilityMaterialsteel, nickel finishLinks114ConnectionPowerLinkCompatible Components8-speed drivetrainIncludesPowerLinkActivitytrail ridingManufacturer Warranty2 years