I have some version of a SunRace 10-speed chain, and I'm curious as to why it seems as though each pin is a regular "non-hollow" pin, and a single one on the chain is hollow. Is this some kind of a master link? I couldn't tell via - How can I tell if a chain has a master link?.

10-Speed hollow chain

1 Answer 1


Its not a master link - that's probably the one-use pin that was used to close the chain the first time.

This is what a Shimano pin looks like after its been snapped off. There's a clear difference to show this pin should not be pushed out again because the plate holes will be enlarged slightly.

Shimano one-use pin

Your one doesn't look quite the same - it does look like a snapped off line exists though. This was probably a hollow connection pin rather than the solid one supplied with that chain, or perhaps sunrace pins are all hollow.

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