How to choose a bike chain

Chains seem simple, but compatibility errors are common. The right chain is determined mostly by your drivetrain's speed count (10, 11, 12) and, increasingly, by brand.

This is a general overview. Always cross-check with the cassette/derailleur you're pairing it with.

The basics

Speed count — an 11-speed chain is narrower than a 10-speed chain. They're not interchangeable.
Brand — modern 12-speed Shimano, SRAM, and Campagnolo chains are not always cross-compatible. Older 11-speed standards were more forgiving.
Master link / quick link — most modern chains include one. Brand-specific in some cases.

Cross-compatibility, broadly

Chain	Tends to work with
Shimano 11-speed	Shimano, SRAM 11-speed (mostly)
Shimano 12-speed (HG+)	Shimano 12-speed only
SRAM 12-speed (Eagle / AXS)	SRAM-only generally
Campagnolo 12-speed	Campagnolo-only
KMC 11/12-speed	Wide compatibility, brand-specified per model

If in doubt, match the chain brand to the cassette brand and speed count.

Quality tiers

Within a brand and speed count, more expensive chains usually offer:

Lower friction (often the biggest real-world difference).
Treated surfaces for longer life.
Lighter weight.

The performance gap between a mid-tier and top-tier chain is often less than the price gap.

Wear

Chains stretch as they wear. A worn chain accelerates wear on the cassette and chainrings. Use a chain wear tool (cheap, takes 30 seconds) — replace at 0.5% wear for cost-effectiveness.

Common mistakes

Buying the wrong speed count.
Mixing 12-speed brands without checking compatibility.
Riding a worn chain too long — replacing the chain alone is cheap; replacing the whole drivetrain is not.

Browse our chains or send us your drivetrain spec — we'll confirm the right fit.