Cane Creek ZN40 Headset Bearing - 52mm | 45 x 45 Helmets and a GX T-Type Flattop

and a GX T-Type Flattop chain with nickel coating for long wear life

designed for precise index shifting across all Shimano 9-speed drivetrains

efficiently dissolving grease

Compatibility with the Infinite Light Power Pack+ extends runtime further for ultra-distance or bikepacking use

and bring an aging shock back to factory spec without a full replacement

Cane Creek ZN40 Headset Bearing - 52mm | 45 x 45 Helmets and a GX T-Type FlattopWhat Makes the ZN40 52mm 45x45 Bearing Worth the Upgrade? The Cane Creek ZN40 52mm 45x45 Headset Bearing is an engineered replacement cartridge for lower cup positions requiring the 45x45 contact angle and a 52mm outer diameter. The zinc coated steel race provides a meaningful corrosion barrier against the moisture, grit, and road spray that headset bearings encounter on every ride, while hardened steel balls ensure the smooth, consistent rotation