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

Crafted with Ritchey’s attention to quality and fit, the Fit headset external cup features precision machining that promotes proper headset geometry and minimizes unwanted play over time. Its sturdy construction is built to withstand the forces encountered during regular use, while the black finish offers corrosion resistance and a clean visual match with a variety of frame styles.

Installing this threaded lower external cup correctly supports consistent bearing operation and a smooth steering feel by maintaining proper alignment within the head tube. Whether you’re assembling a new bike, performing routine service, or replacing worn components, the Ritchey Fit Headset Ext Cup EC34|28.6 Threaded 1.125in delivers dependable front-end performance where it matters most.