Origin8 Alloy Classic Chainrings, 144mm, Silver Review Posted by Pelicandy October 20, 2018 in Drivetrain Components CNC machined 6061-T6 aluminum construction 144mm 5-Bolt BCD pattern Track or Fixie applications Made in the U.S.A. Origin8 Alloy Classic Chainrings in various sizes Random Products SRAM Rival 1 42T X-SYNC Crankset Without Bottom Br... Campagnolo 2014 Record 10-Speed Steel/Titanium Roa... JGbike Sunrace 11-50T 12 Speed Cassette CSMZ90 WA5... SRAM XX1 Eagle Black/Gold 4-Piece Groupset Without... Cycling Origin8 Outdoor Recreation Parts & Components Sports & Outdoors