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HG-X Chain
![hg_x](https://dassets.shimano.com/content/dam/global/cg1SHICCycling/final/technology/technologyIcon/hg_x.png)
HG-X Chain
Further evolution of shifting performance
A directional mountain bike specific 10-speed HG-X chain means smoother shifts, lighter weight and greater overall performance.
HG-X directional chain: Outer side is optimized for front shifting and inner side is optimized for rear shifting.
![hgx-function2015-.jpg](/content/dam/productsite/shimano/tech-description/1426831691506_outer.jpg)
Outer side parts
![hgx-function2015-.jpg](/content/dam/productsite/shimano/tech-description/1426831691506_inner.jpg)
Inner side parts
![hgx-function2015-.jpg](/content/dam/productsite/shimano/tech-description/Tech_Image_HGX_01.jpg)
Special 10-speed Chain for MTB
- • Designed for MTB riding conditions: High • torque pedaling and muddy conditions.
- • Durable: Lightweight holes on the link plate are filled.
- • Mud shedding: Consistent shifting performance under muddy conditions.
* HG-X chain is not compatible with other road 10-speed systems.
![hgx-function2015-.jpg](/content/dam/productsite/shimano/tech-description/Tech_Image_HGX_02.jpg)
![hgx-function2015-.jpg](/content/dam/productsite/shimano/tech-description/Tech_Image_HGX_03.jpg)
The side with the mark shown in the illustration is the forward side (outer side).