In Stock and Ready to Ship! The ultimate insurance policy for your crankshaft. 💎 When you’re pushing high RPMs and extreme torque, harmonics and vibrations can become a nightmare for your flywheel bolts. Our IMS Diamond Claw Shim is engineered to eliminate surface welding (fretting) and prevent bolts from backing out in high-stress applications. By utilizing precisely sized diamond particles (10,000 Vickers hardness), this shim bites into the surface to lock the flywheel and crank together as one. Protect your build: 🔗 irozmotorsport.com #IrozMotorsport #Engineering #Drivetrain #DAZA #DNWA