Park Tool CNW-2 Chainring Nut Wrench

Working on a crankset can quickly become frustrating when the chainring nut spins along with the bolt and prevents a clean removal. That is exactly where this dedicated tool makes the difference. It is designed to engage the slots on the back side of the chainring nut, holding it securely in place while the bolt is loosened. Instead of improvising with generic tools, struggling for purchase, or risking damage to the hardware, you get a purpose built solution made specifically for this task.

This is a practical workshop tool for riders who maintain their own bikes and for mechanics who want better control during service. Because it is made specifically for chainring nut retention, it helps make chainring bolt removal much easier and more controlled. By preventing the rear nut from spinning, it simplifies a job that can otherwise be awkward and time consuming. Whether you are removing a chainring for replacement, servicing your drivetrain, or simply doing routine maintenance, a dedicated tool like this improves workflow and reduces unnecessary hassle. It is a simple idea, but one that delivers real value when precision and ease of use matter.

• Purpose built use: Designed to hold the chainring nut while loosening the bolt
• Slot engagement: Fits into the slots on the reverse side of the chainring nut
• Prevents spinning: Helps stop the rear nut from rotating during removal
• Easier service: Makes removing chainring bolts much easier
• Task specific design: Built specifically for this job rather than as a generic wrench
• Better control: Supports a cleaner and more controlled chainring service process
• Workshop friendly: Useful for home maintenance and regular bike service
• Practical solution: A focused tool for a common crank and chainring maintenance challenge

Add the right tool to your bench and make chainring bolt service smoother, cleaner, and far less frustrating.