CN-HG40 6,7,8sp Chain (Bulk)
The Shimano CN-HG40 is a 6, 7, and 8-speed chain built for indexed HYPERGLIDE shifting on Altus, older Alivio, and STX drivetrains. Chamfered inner link plates align with HG-profile sprockets to smooth gear changes, particularly on downshifts, making it a straightforward replacement chain for entry-level and commuter drivetrains sold here in bulk for shops and mechanics.
Rollers, pins, and side plates receive heat treatment for added wear resistance, and the pin retention design helps keep side plates seated under load. A quick link simplifies installation and removal without a chain tool. At 7.3mm wide with 116 links, it suits most 6 to 8-speed cassette and derailleur setups.
Quick Facts
| Feature | Specification |
|---|---|
| Compatibility | 6, 7, 8-speed HG-compatible drivetrains (Altus, older Alivio/STX) |
| Link Count | 116 links |
| Chain Width | 7.3mm |
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Product images may vary slightly from final specifications.
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