Clip link n Rivet link n Split link
My $0.02
Motorcycle roller chains......are joined by two methods & I have never seen a third joint variety (cotter type), used on a modern motorcycle chain whether straight or offset construction.
A chain which is joined by riveting does not have a 'split link' whether supplied as endless or with a rivet type joining link - all links are riveted & disassembly requires destruction of that link.
A rivet link has two parts to assemble (not including seals).
For many years, before I was posh
& could afford a special tool, I used 2 hammers to rivet these chains.
'Clip link' has 3 parts to assemble and one part, the clip, is split. Disassembly is easy and quick and requires no special tools. This was very handy (but bad practice), with stretched chains ( remember Reynolds 3/8 5/8 knicker elastic often from the machine shop storeroom?), as you could put off buying a new chain by 'Splitting' the chain, removing a link, reusing the joining link and shoving the spindle right up the fork in the swinging arm
This ability to easily split the chain is what earned the Clip link the common, split link, name.
Clip type links are used for less powerful machines AND/OR where the chain speed is low.
Pause for thought - anyone have a clip link as STD in their motorcycle camchain???? No one? 
Standby for backlash
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