ISB MR222378 2RS High Speed Rubber Sealed Bearing for Bicycles 22.2x37x8/11.5 mm
🔩 ISB ENDURANCE Bearing – 22.2×37×8/11.5 mm. Bicycles or custom hubs. Inner Race: 8 mm. High-grade bearing steel for long life and durability. Outer Flange / Shoulder (if applicable): 11.5 mm. Note: The dual width value (8/11.5 mm) suggests a stepped or flanged design.