I purchased a 29 in unicycle with a street tire. I have been riding it since April. I ride mostly on streets and a rail trail with small stones probably 1/4 in diameter. I have probably put 75 miles on it total. My tire already is down to the thread in spots. Is this normal?
Tires come in many varying degrees of durability and grip, and some seem designed more for looks than for function. I’ve noticed the yellow 20" qu-ax tires perish very fast when left to the elements.
If you turn around on the spot without moving forwards a lot it will wear tires fast, and less pressure will also perhaps encourage wear as low psi grips more and high psi turns easier.
If there are two spots which are more worn than others, you can rotate your tire 90 degrees, or move your cranks if you happen to be doing maintenance. This will prolong the life slightly but it sounds like time to experiment with a different tire. I’m tempted to try a hybrid tire on my 29er with lots of small knobs, I use the Kenda nevegal 700x55c it came with. I have a unicycle with 700x28c too but it gets neglected due to the 36" being faster.
The best way to get a long lasting tire- get a 36"
I’ve far less punctures since switching.