Been using S100 to clean my Triumphs for decades, never caused a paint problem. But, always use it on a cool bike and if possible in the shade. Also use lots of cold water to rinse it off, otherwise it will leave a milky film, especially on black parts.
Every normal man must be tempted, at times, to spit on his hands, hoist the black flag, and begin slitting throats.
H. L. Mencken
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