Park Tool FR-5.2GT Cassette Lockring Tool with 12mm Guide Pin | Contender Bicycles Park Tool FR-5.2GT Cassette Lockring Tool with 12mm Guide Pin | Contender Bicycles
Park Tool FR-5.2GT Cassette Lockring Tool with 12mm Guide Pin | Contender Bicycles
Park Tool FR-5.2GT Cassette Lockring Tool with 12mm Guide Pin | Contender Bicycles
SKU: J610485
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Park Tool FR-5.2GT Cassette Lockring Tool with 12mm Guide Pin

Regular price $14.95
Regular price $14.95 Sale price $14.95
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Product Details

The FR-5.2GT builds on the trusted design of the FR-5.2, featuring an added 12 mm guide pin for enhanced stability when servicing thru axle hubs. This tool is designed to fit the most common 7-to-12 speed cassette lockrings, including those from Shimano, SRAM, and others. It also works with disc brake lockrings and lockring adapters featuring 12 internal splines.

The FR-5.2GT is an essential tool for mechanics and riders working with modern thru axle hub systems, offering increased precision and ease of use.

Key Features:

  • Enhanced Stability: 12 mm guide pin ensures precise alignment when working with thru axle hubs
  • Wide Compatibility: Works with 7-to-12 speed cassette lockrings and disc brake lockrings
  • Thin Wall Construction: Allows use without removing cones and locknuts
  • Hexagonal Base: 1" hex base compatible with sockets, wrenches, or a bench vise
  • Durable Material: Heat-treated alloy tool steel for long-lasting reliability


  • Fits 12-spline tool fittings with an approximate outer diameter of 23.4 mm including:
    • Cassette lockrings from Shimano, SRAM (including 1x), SunRace, SunTour, Chris King, and others
    • Disc brake lockrings and lockring adapters with 12 internal splines from Shimano and other brands
  • 1" hexagonal base can be used with 1" socket or wrench.

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