Cleaning Hayabusa's Rubber Rims

I just got my Hayabusa SL today in the mail and after learning a bit of offstring in my backyard the rims have gotten really dirty … (probably a bad idea to get white rims?)

What is the best way of cleaning the rubbery rims of the Hayabusa?

I’ve tried just using a bit of water which worked at first … but now the dirt has gotten in a bit deeper and it’s getting a lot harder to scrub it out with just a damp paper towel.

I use bleach on the white. But, if this doesn’y work then IDK.

The easiest thing to do is just not worry about a little dirt and keep playing with it.

rubbing Alcohol