A strong choice for anyone replacing a worn 9-speed chain on a road bike, MTB, hybrid, touring bike or city bike.
The KMC X9 is a 9-speed bicycle chain suited to trekking, downhill, mountain bike, road, cyclo-cross and city touring use. It works with 1x9, 2x9 and 3x9 drivetrains, giving you a versatile replacement for mixed-brand SHIMANO, SRAM and other 9-speed setups.
KMC’s Double X Bridge Shape and chamfered inner plates are designed to support precise, controlled shifting, while the Stretch Proof Treatment helps the chain resist elongation during use. Mushroomed riveting adds secure link connections for dependable everyday durability.
A CL566R reusable MissingLink is included, making installation, removal and routine cleaning more convenient. The silver finish keeps the chain looking clean and understated, while the 1/2" x 11/128" sizing confirms its place as a standard 9-speed derailleur chain. Before ordering, check that your bike uses a 9-speed drivetrain and size the chain to your specific setup.
9-speed compatibility
Designed for SHIMANO, SRAM and other 9-speed derailleur drivetrains.
Works across drivetrain layouts
Suitable for 1x9, 2x9 and 3x9 configurations, giving you flexibility when replacing an existing chain.
Precise shifting profile
The Double X Bridge Shape is designed to support dependable gear changes across your cassette and chainrings.
Chamfered inner plates
Inner plate chamfering helps the chain engage smoothly for clean, controlled shifting.
Stretch Proof Treatment
Helps the chain resist stretch over time, supporting consistent drivetrain performance.
Secure mushroomed riveting
Mushroomed rivets provide firm link connections for reliable chain durability.
Reusable MissingLink included
The CL566R connector makes fitting and removing the chain more convenient for servicing and cleaning.
Broad riding use
Suitable for road, mountain bike, downhill, trekking, cyclo-cross and city touring applications.
General
Dimensions and compatibility
Construction and features
What's included
Double X Bridge Shape
The shaped link profile is designed to support precise, dependable shifting across your 9-speed drivetrain.
Stretch Proof Treatment
Helps the chain resist stretch over time, supporting consistent drivetrain performance.
Mushroomed Riveting
Mushroomed rivets provide a secure link connection for dependable chain durability.
Inner Plate Chamfering
Chamfered inner plates help the chain engage smoothly for clean, controlled shifting.
KMC is a Taiwanese bicycle-chain and drivetrain-component brand founded by Charles Wu in Tainan in 1977. The company began by engineering and producing bicycle chains and has since developed a global manufacturing and distribution network serving users in more than 150 countries.
KMC specialises in bicycle chains and related drivetrain products, alongside motorcycle, industrial and automotive chains. Its bicycle range is associated with broad drivetrain compatibility, chain-design research and technologies including the patented MissingLink connector and X Series chain designs.
