The Park Tool FR-5.2 Cassette Lockring Tool Available at Contender Bicycles The Park Tool FR-5.2 Cassette Lockring Tool In Use View Available at Contender Bicycles
The Park Tool FR-5.2 Cassette Lockring Tool Available at Contender Bicycles
The Park Tool FR-5.2 Cassette Lockring Tool In Use View Available at Contender Bicycles
SKU: J610362
In Stock
On Sale

Park Tool FR-5.2 Cassette Lockring Tool

Regular price $7.99
Regular price $7.99 Sale price $7.99
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Product Details

The FR-5.2 is an essential tool for removing and installing 7-to-12 speed cassette lockrings. It fits the most common 12-spline lockring design used by popular brands such as Shimano, SRAM, and more. Additionally, it is compatible with disc brake lockrings, lockring adapters, and even top caps of some Rock Shox suspension fork models.

The FR-5.2 is a versatile and reliable tool, built to withstand frequent use and provide precise engagement for various bike repair tasks.

Key Features:

  • Compatibility: Fits 7-to-12 speed cassette lockrings, disc brake lockrings, and Rock Shox suspension fork top caps
  • Thin Wall Construction: Allows use without removing cones and locknuts
  • Hexagonal Base: 1" hex base for use with a socket, wrench, or bench vise
  • Durable Construction: Made of heat-treated alloy tool steel for long-lasting durability


  • 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
    • Top cap of some Rock Shox suspension fork models including Pike, Lyrik, SID, Revelation, Reba, and Paragon
  • Center bore for axle clearance is 12 mm.
  • 1" hexagonal base can be used with 1" socket or wrench.

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