Hope Headset Upper ZS49/28.6 Black Model=X-3 Dirty Chain Machine }SRAM Hydraulic Road Disc Piston

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Note on lower tubes: diameter can be changed between 30

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Hope Headset Upper ZS49/28.6 Black Model=X-3 Dirty Chain Machine }SRAM Hydraulic Road Disc PistonHope headset solutions: separate top and bottom headset cup assemblies for tapered, reducer and conversion applications IS (36x45 degree Cane Creek Integrated), ZS (Zero Stack), or EC (traditional, External Cup) available for reduced 1 1 8 inch and tapered 1. 25>1 1 8 inch, 1. 5>1 1 8 inch steerers TECH SPECS model Conventional upper S. H. I. S. ZS49 28. 6 upper lower upper stack 7mm color black weight 64g