Hope Headset Upper ZS49/28.6 Black MFPN=141-34078-K016 }Wheels Manufacturing Press Fit BB86/92

}Wheels Manufacturing Press Fit BB86/92 Bottom Bracket - For use with 30mm Spindles Dual-Row ABEC-3 Bearings

2 ISO Width (mm) 55 ISO Diameter 622 / Road / 29"

Anodized red

The benefits are super low friction

Hope Headset Upper ZS49/28.6 Black MFPN=141-34078-K016 }Wheels Manufacturing Press Fit BB86/92Hope 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