What Our Gearhead Experts Are Saying:"This is the tool that finally makes crank lockring removal straightforward—snug fit, solid steel, and no slippage when working in tight spaces. The big hex lets you grab it with a shop wrench or build it into your at-home setup."The Shimano Crank Lockring Tool delivers professional-level precision for removing or installing chainring lockrings on modern Shimano 12-speed cranks. Machined for a tight fit, it mates securely to low-profile lockrings to prevent cam-out or part damage. A large hex interface is easy to use with a shop wrench or vise, ensuring you have the leverage for stubborn jobs. Compact, tough, and compatible with a range of Shimano setups, this is a must-have for drivetrain upgrades or DIY maintenance.