If you're not entirely offended at buying small, job specific products, Crankalicious make a gumwall tyre cleaner. Whilst most of their products are utter dogfoul, this actually works very well.
https://www.crankalicious.com/products/like-pneu
@monkdagola started
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If you're not entirely offended at buying small, job specific products, Crankalicious make a gumwall tyre cleaner. Whilst most of their products are utter dogfoul, this actually works very well.
https://www.crankalicious.com/products/like-pneu