According to Muc-Off in their FAQs "...the formula is the same in each, but we simply label them with specific instructions for each cleaner for the separate markets, giving you the best cleaning power possible."https://muc-off.com/pages/faqsI think it's more that the motorcycle version is heavily discounted. Neither are worth anywhere near the full price imo. If anything you would think the motorcycle version should be the better product as it would need to remove more grime and yet be less abrasive on unpainted parts.
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