Park Tool Tools|Replacement Parts|FR-5.2 Cassette/Rotor Lockring Removal Tool (Black)

The Park Tool FR-5.2 Cassette/Rotor Lockring Removal Tool is made from heat-treated alloy steel with a one-inch base. Thin wall construction allows use without the removal of cones and locknuts. The FR-5 has 12 splines that are approximately 23.4mm across.

Features:

• Fits most 7-12 speed cassette lockrings
• You can use a quick-release skewer to hold the tool in place and snug to cogs when loosening; for solid axles, use the axle nut
• Hex-shaped base of tool fits 1″ (25.4 mm) socket or wrench. Can also be clamped in a bench vise

Specifications:
Outer Diameter: 23.4mm (Approximate)
Center Bore (For Axle Clearance): 12mm
Splines: 12

Compatibility:

• Fits 12-spline tool fittings with an approximate outer diameter of 23.4 mm
• Fits cassette lockings from Shimano, SRAM, SunRace, SunTour, Chris King, and more
• Fits disc brake lockrings and locking adapters with 12 internal splines (Shimano type)
• Fits top cap of some RockShox suspension forks including Pike, Lyrik, SID, Revelation, Reba, and Paragon

This product is expected to become available for purchase on Saturday, July 11, 2026