Acros IS41/IS52 Bearing Set

The Acros fully integrated IS bearing set combines robust stainless steel angular contact bearings with well-designed seals. The result: long-lasting performance, minimal maintenance, and more relaxed time on the bike. Key Features• Upper Inner Diameter (ID): 41mm• Lower Inner Diameter (ID): 52mm• Steerer: 1 1/8"/1.125• Upper Bearing Dimension: 41x30.1x5.5mm - 36∞/45∞• Lower Bearing Dimension: 52x40x7mm - 45∞/45∞