Park's Cassette Lockring Tools fit most cassette lockrings from Shimano, SRAM, SunTour and SunRace. Made from heat-treated tool steel.
The FR-5G features an extra-long splined body to prevent slippage and a guide pin to ensure the tool is in straight, preventing stripped lockrings.
*FR-5 - Always use a quick release skewer to hold the tool in place and snug to cogs when loosening. For solid axles, use the axle nut.
*The FR-5G and FR-5 require the use a chainwhip tool to prevent the cassette from turning during lockring removal.