Shop Quality tool to remove and install the lockring that keeps the spider securely fastened to the drive-die crankarm Version 2 is thinner and has a better interface for putting a big wrench on it for leverage Has interfaces for socket wrench (highly recommended) and large adjustable wrench These lockrings are originally installed with tough Locktite The Cannondale Hollowgram Spider Lockring Removal Tool V2 is a shop quality tool, it is recommended that a socket wrench is used, but there is a spot to let you use a large adjustable wrench. Lockrings originally installed ith Locktite. Make sure to clean off old Locktite and reapple Locktite before reinstalling lockrings.