I’m currently conducting an experiment (ish):
I’ve used Muc Off C3 Ceramic Dry year round for ~1400 miles on my hardtail.
I got hold of some Rock’n’Roll Extreme Blue last October, at the same time as I got my fat bike, and have used it exclusively on the fat bike since new (450-ish miles).
My experiences:
The Muc Off is really easy to use, and really clean – just hose the chain off after a ride and put a drop of lube onto each roller as you wind the chain past. Job done. It’s quite ‘treacley’ and clings well to the chain which makes it easy to get it in the right place, and it doesn’t drip on the floor. Works perfectly well on a wet chain. Lasts all day unless it’s really wet (very wet, muddy trails – not just rain), then you can feel things starting to get crunchy after a couple of hours.
The R’n’R lasts longer than the Muc-Off, and resists the wet better, but you can feel it wearing off after ~30 miles in the wet. It was quite clean to start with, but has started developing black gunk now. Dirt doesn’t rinse off with a hose, so you need a good supply of rags for wiping the chain off after lubing, and I find it needs several wetting / wiping cycles before the dirt stops coming out of the chain. Because of this, I find it marginally more of a faff to apply. Also it is much thinner (less viscous) and doesn’t really cling to the chain, so tends to drip on the floor / squirt onto the wheel rims unless you are very careful.
On my hardtail, I’ve also tried the ‘Normal’ Muc-Off dry lube (I think it works nearly as well as their posher stuff, but doesn’t last quite as long), Finish-Line (no discernable lubricating properties, and it went black), Squirt (didn’t get on with it at all – chain went rusty, and it wore off really quickly – yes, I did de-grease the chain, and follow all the instructions twice, but it wasn’t for me. YMMV – it obviously works well for some people.), Halfords own ‘bike hut’ (built up and went black in no time) and Scottoiler UBS (Very, very thin – I didn’t find it had any lubricating properties worth mentioning).
So at the moment, I’m not sure which is ‘best’ for me: R’n’R for longevity/performance or the Muc Off for cleanliness / ease of use.
I’ve still got a supply of both, so will continue as I am for the time being.
I have to say that I’m curious to try the Putoline Wax, though.