Nine-speed drivetrains have quietly become the workhorse spec across a huge range of bikes—older road bikes still going strong, hybrids, commuters, entry-level mountain bikes, and hub-geared setups—and finding a chain that shifts properly and lasts more than a season matters more than the price tag suggests. Shimano's CN-HG93 is the chain we reach for whenever a customer brings in a 9-speed drivetrain that needs a refresh, whether it's a Sora, Tiagra, Ultegra 6600-era road setup or an XT, LX, or Deore mountain build. It runs Hyperglide tooth ramps, chromized rivet pins for wear resistance, and zinc-alloy plating on the outer links to keep corrosion at bay.

The 6.6mm inner width is what matters for compatibility—that's the 9-speed spacing, and it works across single, double, and triple chainring drivetrains without any drama. Shifting quality is where the HG93 earns its keep. The Hyperglide profile is engineered to interact with Shimano's HG cassette tooth ramps, so downshifts under load come through crisp instead of that clunky hesitation you get with generic chains that technically fit but weren't designed around the same shift ramps.

The 116-link length covers most road and mountain applications, though you'll want to size it to your specific drivetrain before installing—big-cassette or long-chainstay bikes may need every link, while compact setups will have you removing a handful. Installation uses a pressed connecting pin (included), not a reusable quick link, so you'll need a chain tool to press the pin through. If you prefer master link convenience, a KMC Missing Link 9 or Wippermann Connex 9 will drop right in as a companion piece and let you remove the chain for cleaning without a tool.... Read More