Acros IS42/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): 42mm• Lower Inner Diameter (ID): 52mm• Steerer: 1 1/8"/1.125• Upper Bearing Dimension: 41.8 x 30.1 x 5.5mm - 36∞/45∞• Lower Bearing Dimension: 52 x 40 x 7mm - 45∞/45∞