The FR-5.2 Cassette Lockring Tool is a precision-crafted companion for any serious cyclist or mechanic. Built from heat-treated alloy steel, it is engineered to last through countless maintenance sessions without wearing down. Its 12-spined design fits snugly into the grooves of a wide range of cassette lockrings, including Shimano, SRAM, SunRace, and Chris King models. Whether you're working on an eleven-speed SRAM XX1 cassette or a Shimano disc brake lockring, the FR-5.2 delivers reliable performance every time. Compact, strong, and easy to handle, this tool ensures your drivetrain stays perfectly tuned with minimal effort. | Park Tool FR 5.2 Cassette Lockring Tool