KMC X Flat 12/13x Speed Aurora Blue Waxed Chain 126L

The KMC X-Flat Waxed 12-13s chain is engineered for SRAM Flat-Top 12/13-speed drivetrains, delivering precise, quiet shifting and durable performance for MTB and gravel riding. Factory-waxed to reduce friction from the first pedal stroke, it provides cleaner operation, less dirt accumulation, and enhanced power transfer. The chain features a Double X-Bridge outer plate design for rapid, reliable gear changes under load, and an asymmetrical chamfering on inner and outer plates to minimize noise. Its wax coating improves efficiency and drivetrain cleanliness, while the flat-top profile enables a narrower, stronger chain optimized for SRAM 12-speed AXS or Transmission/T-Type systems. The chain arrives ready to install, with a silver/black finish and a 126-link construction designed for modern 12/13-speed setups. Includes a reusable MissingLink for easy installation and maintenance.

Features

• Factory-waxed for reduced friction and cleaner drivetrain
• Double X-Bridge outer plates for fast shifts under load
• Flat-Top design for quiet, precise performance
• Waxed finish is biodegradable and attracts less dirt
• Compatible with SRAM 12-speed AXS or Transmission/T-Type

Technical specifications

• 126-link chain with 1/2" x 11/128" pitch
• Flat-Top profile for SRAM 12/13-speed drivetrains
• Pre-lubricated with KMC GO Wax
• Includes reusable MissingLink
• Weight per 110L: 262 g
• Finish: silver/black