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Hot take: That new 'universal' tubeless sealant we all got samples of last month is eating through valve cores in under a week.
I've had three customers come back with slow leaks in Chicago since last Tuesday, and each time the brass valve core threads were corroded and gunked up with a weird, rubbery residue from that specific brand.
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linda_dixon496mo ago
Ugh, tell me about it! My spare tube's valve stem looked like it got chewed on after I tried that junk.
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oscarsullivan7mo ago
Guess that's what they mean by 'universal' - it works on everything, including destroying your valves.
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robert4247mo ago
My buddy used that stuff on his old truck. Said it cleaned the fuel line so well it took the valves with it.
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davis.david7mo ago
Had the same issue with a batch of those samples. Switched back to the orange sealant from the bike shop on Main. No more crunchy valve cores. Cleaned the threads with a wire brush and some isopropyl alcohol before the swap. Been solid for two months now.
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