2. No u shouldn't spend on it. Or ask what it does for the bike. And take a pic of those in Yamalube. I haven't heard of anything like that. Maybe the bottles are of Yamalube, and not whats inside it.
That maybe due to diesel wash on the disc. Or maybe also due to chain lube or grease like substance got on to the disc.


Brother took it for a ride and dropped it. 

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