Description
KMC X12 12-Speed Chain
The KMC X12 Chain is a high-performance 12-speed chain designed for modern MTB and road bike drivetrains. Compatible with SRAM, Shimano, Campagnolo, and other 12-speed shifting systems, it delivers smooth, precise shifting thanks to KMC’s advanced X-Bridge technology.
Built from durable steel construction, the X12 features precisely engineered chamfers and optimized plate geometry to improve drivetrain efficiency and shifting performance. The chain is available with MissingLink connection technology for easy installation and maintenance.
The EPT (EcoProTeQ) version provides enhanced rust protection, extending chain life while improving smoothness and durability.
Features
- Compatible with all major 12-speed drivetrain systems
- Suitable for MTB and road bike applications
- Compatible with:
- SRAM 12-speed
- Shimano 12-speed
- Campagnolo 12-speed
- Other 12-speed systems
- X-Bridge technology for fast and smooth shifting
- High-precision chamfered inner and outer plates
- MissingLink connector included
- Non-directional design
- Durable steel construction
- Available with EPT EcoProTeQ anti-rust coating
Specifications
| Specification | Details |
|---|---|
| Product Type | Bicycle Chain |
| Model | KMC X12 |
| Speed Compatibility | 12-Speed |
| Application | MTB / Road |
| Material | Steel |
| Chain Size | 1/2″ × 11/128″ |
| Number of Links | 126 |
| Pin Length | 5.2 mm |
| Connector | MissingLink |
| Directional | No |
| Durability Rating | 3/5 |
Technology
X-Bridge
KMC’s Double X-Bridge technology uses precisely defined angles and specially chamfered plates to improve interaction between chain, cassette, and chainrings. This results in:
- Faster shifting
- Smoother gear changes
- Improved drivetrain performance
EPT (EcoProTeQ)
The EPT coating provides advanced corrosion protection by creating a smoother chain surface that:
- Reduces rust formation
- Improves chain longevity
- Enhances running smoothness
- Provides a premium finish
