Description: Made from iron and aluminum material,super strength and anti-corrosion. Sealed cartridge bearings. Delicate appearance,sturdy and durable. The headset fits bikes/frames with threads headtubes and forks. Compatible with threadless 1 1/8" (28.6mm) steerer tubes. Specification: Material: Iron and Aluminum Stack Height: 40mm Size: 1-1/8" Headtube: 44mm Head Stem-Build: external Cartridge Bearing Diameter: 44/28.6-44/30(mm) Package Includes: 1 Piece Bike External Headset
