• ZN40 (40-Series) bearings are corrosion-resistant zinc-coated, machined steel cartridge bearings with hardened steel balls
• Compatible with 10-Series, 40-Series, 110-Series and Hellbender 70 headsets
• 36 x 45 degree bearing angle
• Sold each
• For IS41 vs IS42 we recommend measuring the existing bearing with calipers

Compatibility:

38mm - EC30

41mm - EC34, ZS44, ZS49, IS41

42 mm - IS42

52mm - EC44/40, EC49, ZS56, ZS62, IS52