Half link

[Deleted member 1258]

To give it a context: what brand/model chain was it? (pin length / plate thickness)?

I haven't got a clue, it was a few years ago now.

 

[silva]

The halflink I found https://www.rollerchain4less.com/420-non-standard-offset-link#tab-5 for the 420 motorcycle chain has a cotter pin through a hole in the link pen, which is something that protrudes alot more than a spring clip.

I missed a footnote on that url.

Offset link also known as half like for #420 roller chain
Not suitable for bicycles, motorsport products or any on-road vehicles - For industrial applications only.

They don't say why.
Maybe that cotter pin is considered unsafe for road purpose.
Or there is some difference between the industrial links specs and the road chain specs.

 

[colly]

Talk of a 'half-link chain.
Is this what we're on about?

I used this chain, which was left over from another project, when I made this bike up. The other project didn't have horizontal dropouts.