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Overview

What Is the Shimano SM-CN900-11 Quick-Link For?

The SM-CN900-11 is Shimano's 11-speed chain quick-link, providing tool-free chain installation and removal for Shimano 11-speed road and MTB drivetrains. Each package contains two quick-links, which is enough for two full chain installations or for keeping a spare on hand during a long ride or race. The quick-link functions as a master link, joining the chain into a complete loop without requiring a chain tool to push a pin. Shimano lists it as nickel plated and also marks it compatible with its E-BIKE rear derailleur systems.

Shimano rates the SM-CN900-11 as non-reusable. Once the link has been ridden and the locking mechanism has seated under load, it should be replaced with a new quick-link each time the chain is removed. The SM-CN900-11 is compatible with Shimano HG 11-speed chains including the CN-HG601, CN-HG701, and CN-HG901, as well as LINKGLIDE chains, across road, gravel, and MTB drivetrains. For any rider on an 11-speed Shimano drivetrain who wants convenient tool-free chain installation and removal with a factory-grade quick-link, the SM-CN900-11 two-pack is the correct consumable.

All the specs

MPN ISMCN90011A

Speed
11-speed
Finish
Nickel-plated
Reusable
No
Quantity
2 quick-links per package
Compatible chains
Shimano 11-speed HG chains (CN-HG601, CN-HG701, CN-HG901, and others)
Application
Road, gravel, MTB 11-speed

FAQ

Good questions

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Why is the SM-CN900-11 non-reusable?

Shimano rates its quick-links as non-reusable, so fit a new one each time the chain is removed rather than reusing a link that has already been seated.

Is the SM-CN900-11 compatible with SRAM 11-speed chains?

Shimano quick-links are designed and tested with Shimano chains. SRAM uses its own PowerLock quick-link. While 11-speed chain pitch is standardized, using a Shimano quick-link on a SRAM chain or vice versa is not officially supported and may affect link retention reliability.

How do I open a quick-link for chain removal?

Quick-links are opened by pushing both ends toward each other to relieve tension on the locking mechanism, then sliding the plates apart laterally. Quick-link pliers make this easier and are recommended for consistent, clean removal without bending the link plates.

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