Industry Nine iRiX Upper IS42/28.6 Silver 5mm Cover CheckoutTitle=SDG Components Bel-Air V3 Carbon Saddle model X-12 speed 12sp links

model X-12 speed 12sp links 126 color aurora package each

New in 2026

Made in the USA

For steep terrain we recommend the use of a brake

Industry Nine iRiX Upper IS42/28.6 Silver 5mm Cover CheckoutTitle=SDG Components Bel-Air V3 Carbon Saddle model X-12 speed 12sp linksCustomize and upgrade your cockpit with iRiX options Separate upper and lower headset cup assemblies to mix and match Upper assemblies include star nut and top cover, while lower assemblies include split crown race Crown race and top cover employ removable and replaceable silicone lip seals to keep the sealed, 440c stainless steel bearings contaminant free TECH SPECS model iRiX upper S. H. I. S. IS42 28. 6 upper lower upper stack 5mm color silver