Park Tool FR-5.2H Cassette Lockring Tool Shimano SRAM Centerlock

Park Tool FR-5.2H Cassette Lockring Tool

The Park Tool FR-5.2H Cassette Lockring Tool is the industry-standard solution for removing and installing 12-spline cassette lockrings on Shimano-compatible freehub bodies. Designed for professional reliability, the FR-5.2H also works with many Centerlock disc brake lockrings—making it one of the most versatile drivetrain tools in any workshop.

Its specially modified head allows use without removing the quick-release skewer nut on many hubs, saving time during service. The removable threaded handle provides excellent leverage and allows easy replacement of the tool head if it ever wears out.

Key Features & Benefits

• 12-spline cassette lockring compatibility
  Works with Shimano, SRAM, SunRace, SunTour, Chris King, and more

• Quick-release friendly design
  Modified head allows lockring service without removing the QR skewer nut on many hubs

• Centerlock disc brake compatible
  Fits many Shimano-style 12-spline Centerlock lockrings

• Integrated handle for leverage
  Comfortable grip provides excellent control and torque

• Serviceable construction
  Removable, threaded handle allows fast replacement of worn or damaged heads

• Shop-proven durability
  Built to Park Tool’s exacting standards for long-term use

Compatibility

✔ Cassette Lockrings:

• Shimano

• SRAM

• SunRace

• SunTour

• Chris King

• Other 12-spline cassette lockrings

✔ Brake Systems:

• Some Shimano-style Centerlock disc brake lockrings

⚠️ Note: Always verify lockring spline style before use.

Recommended Uses

• Cassette installation & removal

• Drivetrain service and maintenance

• Wheel swaps and hub servicing

• Professional shop and home mechanic use

Technical Specifications

• Model: FR-5.2H

• Interface: 12-spline

• Handle: Removable threaded handle

• Tool Type: Cassette / Centerlock lockring tool

Why Choose Park Tool?

Park Tool tools are trusted worldwide by professional mechanics for accuracy, durability, and ease of use. The FR-5.2H is a workshop essential—robust enough for daily shop use and precise enough for home mechanics who demand professional results.

The go-to cassette lockring tool for Shimano-style drivetrains—efficient, durable, and shop-approved.