Chain advice

[darrsi]

Can't say i've heard of people using two links before. I can't see it being an issue as long as they have been competently fittedwhich is the very important part.
My only guess is that they've replaced a sticky link rather than the whole chain, which possibly either indicates an old chain or a link that has been missed a few times when lubing that's gone bad.


As mentioned, if the chain is properly tensioned then you can try pulling it at the rear of the sprocket and see if it lifts away at all which will give a hint towards wear and tear. 


Look for any hooking on the sprockets too, it may look subtle on first sight but you will know if they are worn or not, or take photos and show us.


Are you feeling any knocking in the left footpeg, or hearing any strange noises from the chain, these are other signs of the chain/sprockets being on their way out.


You can also carefully view each lower link of the chain with the bike on the centre stand and every single link should look horizontal, if you see even one link that is slightly offset at an angle then that's another sign that the chain links are getting a bit sticky and tired.