Leverage is your friend.

If you're frustrated with your current cassette lockring tool constantly slipping up while on the job, we'd suggest the Integrated Cassette Lockring Wrench with Guide from Unior. It uses a central guide pin that fits into the axles of quick-release wheels to help keep the tool from slipping out. It also features an integrated handle for a sure grip with plenty of leverage to back off those pesky, tight lock rings. It's compatible with Shimano and SRAM-style cassette lockrings and certain rotor lockrings.

• A lockring remover with a guide pin and integrated handle
• Offers a secure connection to lockrings and plenty of leverage
• Shimano/SRAM HG lockring compatible