Wolf Tooth Performance Headset - ZS56/40 Lower, Ultraviolet Purple Mirrors - The original is still

- The original is still the lightest and least expensive

Manufacturer Part Number: BB19BSA7330

Cassette Spacing: Shimano/SRAM 8

DP5907 270917-01

ISO-Mountain safety certified

Wolf Tooth Performance Headset - ZS56/40 Lower, Ultraviolet Purple Mirrors - The original is stillWolf Tooth Performance Headsets are machined out of aircraft grade aluminum and assembled with Black Oxide Cartridge Bearings, balancing quality and price. Black Oxide Bearings are made from chromium steel for high load capacity and durability Custom molded dual lip seal on the crown race protects lower bearing in the toughest conditions Product Specifics S. H. I. S Lower: ZS56 Color: Ultraviolet Purple Bearing Type: Black Oxide Steel Crown Race: 40