Park Tool FR-5.2G Cassette Lockring Tool 5mm Guide Pin Shimano SRAM

Park Tool FR-5.2G Cassette Lockring Tool with 5mm Guide Pin

The Park Tool FR-5.2G is a professional-grade cassette lockring tool designed for accurate, secure removal and installation of cassette lockrings on Shimano-compatible freehub bodies and select Centerlock disc brake systems.

Featuring an integrated 5mm guide pin, the FR-5.2G is specifically engineered to stabilize the tool inside quick-release axles, preventing slippage and ensuring perfect alignment during service.

Key Features & Benefits

• Integrated 5mm guide pin
  Seats securely inside quick-release axles for precise tool alignment

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

• Centerlock compatible
  Works with many Shimano-style Centerlock disc brake lockrings

• Professional shop accuracy
  Prevents cam-out, slippage, and lockring damage

• Durable Park Tool construction
  Built for repeated use in professional and home workshops

Compatibility

✔ Cassette Lockrings

• Shimano

• SRAM

• SunRace

• SunTour

• Chris King

• Other Shimano-pattern 12-spline lockrings

✔ Axle Types

• Quick-release axles (5mm guide pin)

Specifications

• Model: Park Tool FR-5.2G

• Spline Count: 12-spline

• Guide Pin: 5mm (QR axle compatible)

• Use: Cassette & Centerlock lockring service

• Brand: Park Tool

Recommended Use

• Cassette installation and removal

• Centerlock rotor lockring service

• Road, gravel, MTB, and commuter bikes with QR axles

• Professional shop and home mechanics

Why Choose Park Tool?

Park Tool tools are industry-standard, trusted by professional mechanics worldwide. The FR-5.2G delivers secure engagement, precise alignment, and long-term durability, making it a go-to solution for cassette service on quick-release bikes.

A precision cassette lockring tool designed for clean installs, easy removal, and professional-level results.