Connex 10sX.... google "Chainwear_Test_10_Speed_10-JUN-2010.pdf"

Wipperman Connex 11SX or 10SX

This guy has been testing chains and lubricant as a true independent. It is worth spending the time to read his results.
https://zerofrictioncycling.com.au/chaintesting/

.. the Connex X11 is a good choice (the best) .. and with the Connex quick link easy to handle .. even with the Connex you'll need 2 chains for a transcon at least .. otherwise the whole drive train will be toast at the end .. mounting the quick link check for the "bigger" outside flap rolling between the first two cogs and not skipping over the closure ring for the cassette (if, turn the quick link) .. have fun riding a continent !!

thanks
just the other day i tried to remember this website ( and failled)

.. the Connex 11SX is a good choice (the best) .. and with the Connex quick link easy to handle .. even with the Connex you'll need 2 chains for a transcon at least .. otherwise the whole drive train will be toast at the end .. mounting the quick link check for the "bigger" outside flap rolling between the first two cogs and not skipping over the closure ring for the cassette (if, turn the quick link) .. have fun riding a continent !!

i don’t understand your recommendation - can you explain further? I noticed the quicklink rattles when passing over my smallest cog (11) and this werk during some hard intervals on the trainer the chain skipped a few times. I wonder if I have it on there incorrectly (there are no instructions for it). I don’t quite trust it.

I don’t understand- there are two pieces to make up the quick link and they’re identical. The larger side will be facing forward on one side of the chain and rearward on the opposite side. (What does ‘inside a looped chain’ mean?)