Tubeless setups dominate mountain biking, but they need ongoing attention because sealant dries, beads seat badly, and valves clog. It is easy to forget about the fluid until you hit a rocky section and realize your tires have been dry for months. For those of us riding hardtails on rougher trails, having a reliable seal is critical to avoid unplanned stops.
Reliability comes down to a consistent routine. Some riders top off sealant every few months, while others wait for a leak to happen. There is also the question of when it makes more sense to just carry a tube as a backup versus relying entirely on the sealant.
What routine do you use to keep your tubeless tires reliable and your sealant fresh?