The White Industries IS42/IS42 headset is designed to fit frames with integrated 42mm head tubes and works with straight 1-1/8” (28.6mm) fork steerers. The “IS” stands for “Integrated” as the bearing sits directly inside the frame’s head tube without a cup. The “42/42” stands for the top/bottom inside diameter of the frame’s head tube.
Features:
- Constructed from US sourced 6061-T6 Aluminum
- Machine engraved White Industries logos
- Easily replaceable bearings
- Split crown race makes for a tool-free installation











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