Carbon-Ti tuning kit for Sram 11s-12s rear derailleurs (XX1 Eagle AXS, XX1 Eagle, XX1, X01 Eagle, X01, X1, GX1, NX1, Force CX1, Rival1) , include 6 Al7075T6 CNC bolts : 2 jockey wheels bolts with carbon-ti logo, 2 adjustment limit bolts, 1 preload tension bolt. With 4 gr. total weight, this kit allow to customize your rear derailleur saving up to 8 grams (more than 60%). Many anodized colors availables, 100% Made in Italy.