A few pedals I’ve tried
Standard Nimbus plastic pedals
Basic plastic pedals without pins. Made by Wellgo, also available from Qu-Ax and Impact.
Nothing fancy but I like them. I use these on my trials uni, which I use for learning new skills. I wouldn’t use them for riding any great distance.
Colony BMX pedals
I bought to go on my 26" general purpose uni. I chose them because they were cheap and had purple axles. Turns out they’re terrible pedals.
They have plastic pins, but also a large axle bulge which means you can’t really engage with said pins. As a consequence they’re always slippery. Doubly so when wet.
As well as being slippery their small size and axle bulge also makes them uncomfortable. I retired them after a few rides.
Syncros Squamish III
These are replacements for the Colony pedals on my 26er. Compared to the Colonies they’re larger, feel much tougher, have decent (plastic) pins, minimal axle bulge and are much more purple. Plastic pins, so still not super grippy in the wet, but I wanted “tame” pedals on this unicycle.
I haven’t used these long term, but so far these seem like a good option if you want a large, plastic, well made pedal but without metal pins.
Nimbus studded pedals
Identical to the basic plastic version but with steel pins. Similar to versions by Qu-Ax and KH (the KH ones are polycarbonate rather than nylon).
I used these on my 36er for a few years and overall they’re decent pedals with a good amount of grip. I ended up retiring them because I found them annoying to maintain.
DMR Vault
My goto 36er pedals. Nice size. I find I have a really nice connected feeling with the unicycle.
Great grip with the right shoes, however the pins are quite fat so with the wrong shoes they can feel a bit squirmy. Also the seals on the axle always look like they’re falling out, but they haven’t given me any trouble.
OneUp Composite
I like everything about these pedals except the shape. They’re convex, so if you ride on the balls of your feet then you never quite feel locked in. I originally bought these for my 36er but really didn’t like the feel, so moved them to my muni. I didn’t mind the convexity so much for muni, but still, they never felt quite right.
Deity Deftrap
Silly name, great pedals. These are my current muni pedals, replacing the OneUps.
I really like these. They are large, with just a little bit of concavity. They’re grippy and really really comfortable. These pedals, combined with a soft saddle and a 3" tyre make my muni feel like riding a cloud.
As well as running these on my muni I’m also trialing them on my 36er. Somehow they make the 36er feel lighter, although because there’s a lot of grip I do find I have to watch my foot position so that I don’t hurt my knees over longer distances. Still evaluating them on the big wheel but they may just manage to dethrone the Vaults.
There is a metal version, the TMac. I’m curious to try it, but it’s several times the price of the Deftrap so I’m not sure I ever will.