The NEW ZN40 bearings are zinc coated machined steel cartridge bearing with hardened steel balls. Designed to vastly increases the longevity of the 40 series headsets.
All Cane Creek headset bearings are durable, sealed cartridge bearings, and they’re interchangeable between headset series. Simply match the bearing size and drop in your new bearing. (See below for bearing compatibility).
Compatibility
EC30 will take a 38mm bearing
EC34 will take a 41mm bearing
ZS44 will take a 41mm bearing
ZS49 will take a 41mm bearing
EC44/40 will take a 52mm bearing
EC44/33 will take a 47mm bearing
EC49 will take a 52mm bearing
ZS56 will take a 52mm bearing
ZS62 will take a 52mm bearing
IS41 will take a 41mm bearing
IS42 will take a 42mm bearing
IS47 will take a 47mm bearing
IS52 will take a 52mm bearing