The Park Tool FR-5.2GT Cassette Lockring Tool is a workshop-quality tool designed for the installation and removal of cassette lockrings and select disc brake lockrings. Featuring an integrated 12 mm guide pin, it provides improved stability when working on modern thru-axle wheels, making cassette service faster, easier, and more precise.
Key Features:
- Integrated 12 mm guide pin stabilizes the tool during use on thru-axle hubs for improved accuracy and engagement.
- Compatible with 12-spline cassette lockrings used by Shimano®, SRAM®, SunRace®, SunTour®, Chris King, and other brands.
- Designed to fit lockrings with a 23.5 mm outside diameter.
- Works with many cassette lockrings found on road, gravel, mountain, and commuter bikes.
- Compatible with selected Shimano® Center Lock disc brake lockrings and similar designs.
- Precision-machined construction ensures secure engagement and reduces the risk of damaging lockrings.
- Professional-grade design suitable for both workshop and home mechanic use.
- An essential tool for cassette replacement, drivetrain maintenance, and wheel servicing.
Who is it for?
Home mechanics, professional bicycle technicians, and cyclists who regularly service cassettes, freehub bodies, or Center Lock disc brake systems.
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