FR-5.2GT Cassette Lockring Tool with 12mm Guide Pin

Product Information

The Park Tool FR-5.2GT is a specialized cassette lockring tool designed to simplify maintenance on thru-axle hubs, a common feature on modern bikes. Its key differentiator is the integrated 12mm guide pin, which ensures precise alignment and stability during use, preventing tool slippage and potential damage to the lockring or hub. Crafted from durable heat-treated alloy tool steel, this tool is built for longevity and consistent performance in demanding workshop environments or for the dedicated home mechanic.

This tool excels at removing and installing 12-spline cassette lockrings across a wide range of manufacturers, including Shimano, SRAM (including 1x systems), SunRace, SunTour, and Chris King. The thin-walled design allows it to fit most hubs without requiring you to disassemble cone nuts or locknuts, saving you time and effort. It also handles various disc brake rotor lockrings with a 12-spline fitting.

Features

• Integrated 12mm guide pin provides enhanced stability and prevents slippage on thru-axle hubs.
• Thin-walled construction allows use on most hubs without removing cone nuts or locknuts.
• Compatible with 12-spline cassette lockrings from major brands like Shimano, SRAM (including 1x), SunRace, SunTour, and Chris King.
• Also fits specific 12-spline disc brake rotor lockrings (e.g., some Shimano Center Lock).
• Made in the USA, providing reliable quality and covered by Park Tool's legendary limited lifetime warranty.

Specs

• Material: Heat-treated alloy tool steel.
• Drive Size: 1" (25.4 mm) hex-shaped base for socket, wrench, or bench vise.
• Splines: 12.
• Outer Diameter: Approximately 23.5 mm.
• Guide Pin Diameter: 12 mm.
• Weight: 113g.
• Compatibility: 7-12 speed cassette lockrings.