The SRAM XX1 Eagle AXS XG-1299 is designed to pair with the XX1 Eagle AXS drivetrain system. The 10-50t 12-speed cassette offers an optimal 500% gear range with significant weight savings in a 1x system. Rainbow colorway pairs perfectly with the XX1 Eagle AXS drivetrain componentry X-Dome architecture offers both extreme durability and weight savings The cassette's shifting features create a smoother and quiet system with enhanced inboard and outboard shift performance Designed for use with an XD driver body