The Ritchey Fit Headset Ext Cup EC34|28.6 1.125in is a precision headset component engineered for frames with an external cup headset system and a 1.125-inch fork steerer. Designed to provide a reliable seating surface for the lower headset bearing, this external cup supports smooth steering performance, accurate alignment, and long-lasting durability — essential for confident handling on road, gravel, or light off-road rides.

Crafted with Ritchey’s attention to detail, the Fit headset external cup features precision machining that helps maintain proper headset geometry and minimize unwanted play over time. Its robust construction endures the everyday forces encountered during rides, while the black finish delivers corrosion resistance and clean visual integration with a wide range of frame styles.

Installing the lower external cup correctly ensures your headset bearings operate smoothly and reliably, reducing friction and promoting consistent steering response under load. Whether you’re building a new bike, performing routine service, or upgrading worn components, this external cup is a dependable choice for maintaining front-end performance.