Shimano Chains

Frequently Asked Questions

• How do I pick the right Shimano chain?

  Match the chain to the number of speeds on your cassette: 8, 9, 10, 11 and 12-speed chains get progressively narrower and are not interchangeable. The model name then tells you the tier, which mostly affects weight and finish rather than fit.
• What do the Shimano chain tiers mean?

  Chains follow Shimano's groupset names: Dura-Ace and XTR at the top, Ultegra and Deore XT next, then 105, SLX and Deore. Higher tiers generally save weight and add surface treatments for smoother, longer-lasting running, while every chain of the same speed count fits the same drivetrain.
• Can I run a Shimano chain on another brand's cassette?

  Usually, as long as the speed count matches, since chains of the same speed share close dimensions. Some newer systems are designed around a specific chain profile, such as SRAM's Flattop road chains, so on those follow the drivetrain maker's chain recommendation.
• How can I tell when a chain is worn?

  Use a chain checker: replace 11- and 12-speed chains at about 0.5 percent elongation and 9- or 10-speed chains at about 0.75 percent. Without a checker, 24 half-links of a new chain measure exactly 12 inches, and about 1/16 inch more means it is due.
• How should I clean and lube a chain?

  Wipe it down after dirty rides, degrease when grime builds up, and let it dry before applying lube one drop per roller. Spin the cranks, then wipe excess off the outer plates. Wet lubes suit rain and mud; dry lubes and waxes suit dry, dusty conditions.