Industry Nine iRiX Lower EC49/40 Black MFPN=TB91009100 }Full Speed Ahead Gamma Pro

}Full Speed Ahead Gamma Pro Mega Tooth Chainring - 34t 82 BCD Steel 1 x 11-Speed Black

year 2019+ model Mezzer Pro description IRT assembly

37 Spindle Interface Type Shimano Hollowtech II Weight 77 BB Shell Width (mm) 68 BB/Frame Interface English

8mm rise +/-8 deg length 30mm color gold

6 Defined Color Silver Stack Height 42 Weight 121 Color Polished Silver Material Aluminum Length 90 Bar Clamp Diameter (mm) 31

Industry Nine iRiX Lower EC49/40 Black MFPN=TB91009100 }Full Speed Ahead Gamma ProCustomize 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 lower S. H. I. S. EC49 40 upper lower lower stack 12mm color black weight