The Park Tool 2301.2 is a replacement head for the Park Tool FR-5.2H Cassette Lockring Tool, used for removing and installing cassette lockrings and some disc brake lockrings.
Key Features and Compatibility
- Function: It is an OEM replacement head assembly designed to restore the functionality of a worn or damaged FR-5.2H tool without requiring the purchase of an entirely new handle assembly.
- Compatibility: The head is compatible with 12-spline tool fittings that have an approximate outer diameter of 23.4 mm. This includes:
- Cassette lockrings from Shimano, SRAM (including 1x), SunRace, SunTour, Chris King, and other brands. It is the most common tool fitting for 7- to 12-speed cassettes.
- Disc brake lockrings and lockring adapters with 12 internal splines from Shimano and other brands.
- Top caps of some Rock Shox suspension fork models, such as Pike, Lyrik, SID, Revelation, Reba, and Paragon.
- Design: It features deep splines for secure engagement and an enlarged 20 mm center bore to accommodate thru-axles and allow the tool to be used without having to remove most quick release skewer nuts
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