Shimano SM-CN910-12 HG-EV 12-Speed Quick Link Chain Lock
The Shimano SM-CN910-12 HG-EV is a 12-speed chain quick-link designed for seamless cassette installation and removal on compatible drivetrains. It provides a secure, tool-free connection that keeps the chain properly aligned and functioning under load.
Enables tool-free chain assembly and disassembly for faster maintenance
12-speed compatibility ensures smooth shifting across the full cassette range
24-month manufacturer warranty provides long-term reliability and peace of mind
What sets the SM-CN910-12 apart
The quick-link mechanism locks the chain ends together with a satisfying click, eliminating the need for a chain tool during installation. Its HG-EV profile is engineered to sit flush with the cassette, preventing dropped chains and reducing friction during gear changes.
Ideal for
Cyclists who maintain their own drivetrain and want a reliable, repeatable chain connection. The 12-speed rating makes it suitable for modern mountain bikes and gravel bikes equipped with wide-range cassettes.
Application of Shimano SM-CN910-12 HG-EV
Position the chain ends on the cassette and derailleur pulleys
Insert the quick-link into the chain gap, aligning the pins with the inner plates
Squeeze the link halves together until they click into place
Verify the connection by pedalling gently and checking for smooth chain movement
Shimano is a Japanese manufacturer specializing in cycling components, including drivetrains, brakes, and wheel systems. The brand supplies both OEM and aftermarket parts to major bicycle manufacturers and independent riders. Shimano's product range spans road, mountain, and urban cycling categories.
It is a 12-speed chain quick-link that enables tool-free installation and removal of the chain on compatible Shimano HG-EV cassettes.
It is compatible with 12-speed Shimano drivetrains, including mountain bike and gravel bike setups that use HG-EV cassettes.
The SM-CN910-12 is constructed from Shimano-specified alloy with a hardened pin mechanism, designed to withstand repeated assembly and disassembly cycles.
The package contains 2 quick-link units in blister packaging, sufficient for one chain installation or replacement.
Shimano provides a 24-month manufacturer warranty covering material and manufacturing defects on this product.
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