Park Tool FR-5.2GT Cassette Lockring Tool

Park Tool pairs the FR-5.2GT with heat-treated alloy tool steel and a thin wall profile that works around cones and locknuts without extra teardown. The FR-5.2GT fits common 7-to-12 speed cassette lockrings from Shimano®, SRAM®, SunRace®, SunTour®, Chris King®, plus disc brake lockrings with 12 internal splines.

Key Features

• Tool Fitting Size: 12-spline with approximately 23.4 mm outer diameter
• Guide Pin Size: 12 mm
• Base Size: 1" hexagonal base
• Compatibility: Fits 7-to-12 speed cassette lockrings from Shimano®, SRAM® including 1x, SunRace®, SunTour®, Chris King® and others
• Disc Brake Compatibility: Fits disc brake lockrings and lockring adapters with 12 internal splines from Shimano® and other brands
• Thin Wall Profile: Allows use without removing cones and locknuts
• Tool Interface: 1" hexagonal base works with a socket, wrench, or bench vise
• Construction: Heat-treated alloy tool steel for long-term durability