I've only used a car wash station once on my MX bike. Only used high pressure to get mud out of pegs, under fenders, tires, and the big chunk of mud by the rear shock as seen in the vid. Never on airbox, shock, forks, chain, engine etc. As stated, it can potentially ruin the seals. In some instances it can force dirt past the seal and then the dirt becomes sealed inside.
Maybe the guy has ADHD and forgot his meds? Or maybe he's just having that much fun?
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