My 400ex has some black stains on the red seat from the po. I don’t know if they rode with greasy pants or if some old tree sap dripped on there or what happened.

I figured I could stiff arm some Westley’s Bleech White tire cleaner on it and it would come out looking new, usually that stuff is great. But it hardly did anything at all. Maybe it even dried the seat out a little and gave it a whitish chalkiness now.

What do you guys use to deep clean the red vinyl seat?

Thanks!