Premium 12-Speed Drivetrain Performance
The KMC X12 BlackTech 12-Speed 126L Bicycle Chain is built for riders who want smooth shifting, a clean black finish and dependable long-term performance. Designed for modern 12-speed drivetrains, it is a strong upgrade for mountain bikes, gravel bikes and performance road setups that need fast, consistent gear changes.
Durable BlackTech Finish
One of the standout features of this KMC chain is the BlackTech treatment. Unlike a basic surface coating, BlackTech is designed to become part of the material, helping the chain keep its deep black finish while also improving resistance to rust and everyday wear. It gives the chain a cleaner premium look while adding durability for regular riding in mixed conditions.
Smooth Shifting with X-Bridge Technology
KMC’s X-Series design is built to deliver quick, accurate shifting under load. The precisely shaped X-Bridge construction helps the chain move cleanly across the cassette and chainring, making it a great choice for riders who want a more refined drivetrain feel on technical climbs, fast trail riding and everyday use.
Ready for Compatible 12-Speed Setups
With a 126-link length, direct 12-speed fit and included MissingLink connector, the KMC X12 BlackTech chain is designed to make replacement simple while giving you the performance expected from a premium 12-speed bicycle chain. It is a smart choice for riders looking for a durable black bike chain with strong shifting performance and clean workshop-friendly installation.
- Speed: 12-speed
- Length: 126 links
- Size: 1/2" x 11/128"
- Finish: BlackTech black coating
- Connector: MissingLink included
- Compatible With: Compatible with all 12 speed drivetrains (Except Sram flattop)
- Not Compatible With: SRAM Flattop, SRAM eTap AXS road, and SRAM T-Type flattop systems
- Suitable For: MTB, road, gravel and cyclocross bikes