I've had problems with punctures with metal shards on tubes and tires Continental GP4000S2 and 4 Seasons, where am incredibly hard to see/find metal shards keep puncturing the tube again and again, making me go through loads of tubes and patches.
So I bought Schwalbe Pro Ones (25mm) and mounted them on my DT Swiss Tubeless Ready wheels (RR21 Dicut). Front went on easily rear needed extra tape. Inflated with Stans sealant 50ml just to be on the safe side.
Super fast lovely tires for about 300kms, then one day got a puncture on the tread, small hole. It would only seal when the pressure dropped below 30psi, inflated more spun the wheel. Eventually added more sealant. This seemed to do the trick, managed to get the tire to hold 90psi - that was until the next ride, all seemed well until the 30km mark and then the tire slowly went soft until there was almost nothing in it, wouldn't take any more air. Rode home and somewhere got a sidewall cut making the tire go totally flat. Added more sealant but tire is probably beyond saving. 300km and $45 us dollars?
So my thoughts are....are tubeless tires on road bikes actually long-term functional? Sure I've used Stans in my tires on my mountain bike for way over 5 years, but the industry seem to be jumping the gun. Why should a smaller much thinner casing tire running much higher pressure work as well as on a mountain bike? Surely we need better sealants, better tape, better repair technology, better valves and valve seals for road use? I'm extra worried about the winter, it can be sub-zero here but as it's dry the roads are still safe, but are my tires going to lose any ability to seal at all?
Where do I go from here? Superglue? Tubeless repair kits? Better sealant different tires or go back to the less pain of tubes?