Has anyone found any lightweight bibs for indoor cycling?  I currently have a collection of old bibs that need replacing, only used for indoor rides.

Requirements, cheapish, durable, lightweight.

Whilst there is a wealth of information here https://chinertown.com/index.php/topic,3121.0.html I think the base YKYW bibs are hard to beat for the price.

Whilst I know designed for use outside I don't think I would personally because they are quite open mesh, which makes them very light and airy for the turbo. And you can often get for £15 / 20 euros / dollars (though tariffs may have changed that last one). I could only see on 'Bundle for less' ATM so can't paste an easy link.

Second vote for YKYW bike, ive been using a couple of their sets for a while now and they dont disappoint

why would you want to use cheapest bibg for indoor cycling which sucks to begin with? Use your best bibs to make yourself a bit more comfy is my suggestion.

Inbike has some decent cheap bibs as well.