I noticed today that my wheels didn't seem to be turning as freely as they used to. I presumed it was brake disc rub and spent 30 mins loosening my calipers then tightening them back up after squeezing the leavers. However... I couldn't seem to make it any better and when I spun the wheel it would spin reasonably freely and then come to a stop faster than 'normal'.
I then decided to take the calipers right off and to my surprise it was still doing the same thing. So just as I'm thinking it must be my hubs, I suddenly wondered if it was due to the No Tubes fluid. I've only recently converted to tubeless and I think I managed to put in a bit too much fluid (maybe 100/120ml per wheel). Would this pool at the bottom of my tyre and cause it to stop spinning faster than if I was just running with a tube? Anyone else come across this before? It might just be my hubs but I don't want to take the tyres off unless I really need to!!
So why not check your hubs? Don't recall having to remove tyres to do do this.
I would have said hub bearings first. I'm with coatesy on this one.