The Enduro Bearings ACB 4545 1125 SS - Stainless Steel is designed to enhance your cycling experience with its superior load distribution. Unlike standard bearings, these angular contact bearings spread the load evenly across all ball bearings. This means they last longer, so you can enjoy more time riding and less time in the workshop. Key Features Bearing Code: ACB 4545 1125 Dimensions: 30.5 x 41.8 x 6.5mm Angular Contacts: 45x45 ABEC: 3 Grade: 10 Grease: Kyodo Yushi PS-2 Application: Headsets Weight: 19.24g The Enduro Bearings ACB 4545 1125 SS - Stainless Steel is perfect for headsets, offering reliable performance with its high-quality stainless steel construction. Its precise dimensions and angular contact design ensure a smooth and efficient ride.