Yikes. Never let xenomorphs ride your bikes. Their sweat is almost as bad as their blood.
I have an old set of Dura Ace 7400 STI shifters almost that bad. I bought 'em used cheap just to cannibalize for the internals if necessary to support a good set of the same shifters. The previous owner may have been part xenomorph too.
If I drink electrolytes during a ride my sweat will cause a few rust spots on one of my stainless steel pocket knives, but that's pretty unusual for me. Usually my sweat is pretty inert and I've gotten away with neglecting stuff for years and it's been fine. I've seen other people's sweat disintegrate their clothing and shoes within a few months.