The FSA NO.10 Threadless Headset is for 50mm OD head tubes and comes with an alloy custom top cover and 5/32"×20 retainer bearings.For 50mm OD head tube1.1/8" steererAlloy custom top cover5/32"×20 retainer bearings
Brand-X Threadless 34EESS Sealed HeadsetComing kitted out with a robust alloy construction, this headset is engineered for the demands of modern riding. Brand-X has also put this model through its CNC forging and machining process to remove any unnecessary excess material, while still maintaining maximum strength. This allows it to achieve a superior strength-to-weight ratio for smooth and secure steering performance without any weight penalty. One final highlight is its angular contact sealed bearings that deliver reliability in all weather conditions. Comes complete with a top cap and a star nut to complement your ride.Features: Material: CNC forged and machined 6061 Alloy SHIS Norm: EC34 28.6 EC34 30 Height: 29mm Angular contact sealed bearings Includes: Top cap and Star NutManufacturer's Part Number: BXTHREADLESS34EESSH Black 34EESS SealedBuy Brand-X Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
A split aluminium shim that fits over a 25.4 mm (1 inch) steerer tube changing the outer dimension to 28.6 mm (1-1/8 inch)Allows the use of a stem designed to fit 1-1/8 inch steerer tubes where greater choice is availableBlack anodised finish with laser etched detail