Extremely durable chain for 6, 7 or 8 speed drivetrains. SRAM® Power Chain™ delivers the performance you need on a city bike path or out in the middle of nowhere. The convenient PowerLink™ makes it easy to join links together. No tools needed. Insert, press, lock - it's just that easy! A coating of GLEITMO™, the finest chain lubricant in the industry, provides superior combination of friction protection and dirt fighters.