Park Tool FR-5.2 Cassette Lockring Tool

For removing and installing cassette lockrings on Shimano-compatible freehub bodies and some Centerlock disc brake systems.

• Fits 12-spline cassette lockrings from Shimano, SRAM, SunRace, SunTour, Chris King and others

Warning: California Proposition 65 

https://planet-cyclery.myshopify.com/pages/warning-california-proposition-65