Shimano Centerlock Disc Brake Rotor External Spline Lockrings 21g

Wolf Tooth Green Centerlock Disc Brake Rotor External Spline Lockrings 22g

Shimano Dura-Ace Centerlock Disc Brake Rotor Internal Spline Lockrings 17g

Enve Centerlock Disc Brake Rotor Internal Spline Lockrings 21g

Zipp Centerlock Disc Brake Rotor Internal Spline Lockrings 15g

Hope Silver Centerlock Disc Brake Rotor Internal Spline Lockrings 27g

Shimano Ultegra Centerlock Disc Brake Rotor Internal Spline Lockrings 17g

Wolf Tooth Orange Centerlock Disc Brake Rotor Internal Spline Lockrings 16g