I like those Strida Aluminium pedals best (bottom picture) VP-F80 vpcomponents.com/newen/produ … .php?id=46 - they are stiffer than ANY other folding pedal due to their unique ‘butterfly’ mechanism - But they are not the lightest - the standard, all plastic pedal is lightest.
As an alternative to folding pedals you could consider these removable ones, also from MKS. (wiggle.co.uk/p/cycle/7/MKS_E … 360043865/) Be careful because only pedals with EZY and Superior in the name have the newest attachment system, which is more convenient than the previous one.
I am quite happy with them on my Strida as they are very robust, unlike the folding ones which I had to replace several times.
I’m curious of how the Alloy Pedal Set from Strida (the same as mounted on the SX i guess?) folds and unfolds. When “butterflied” like in the picture, they seem hard to unfold to me, but that’s perhaps not the case?
No, I don’t. However, the pedals themselves get dirt/sand on the surfaces easily when I ride my bike in sandy or muddy environment. Furthermore, the aluminium surfaces become slippery in wet conditions.
Therefore, I bought a pair of MKS FD-7 folding pedals to replace both of them.
I already have a pair of MKS FD-7 folding pedals in silver before I bought this pair in silver & black. However, I think the silver pair do not match with the colour scheme of the black front pulley and cranks, so they have been idle for a long time. I have tried to find a pair in full-black but I failed because the manufacture of of the full-black MKS FD-7 pedals has already stopped due to safty issue. http://www.mkspedal.com/fd-7kanren/fd7.htm
Here are the comparisons between a silver one and a silver & black one.