These work so well to clean dust off of grip tape. I have been using the grip tape eraser that's (i think) designed to clean out finer grit skateboard grips. These work really well for onewheel grips because we have much much coarser grips, and grip tape eraser can't go deep into the groves. I just bought another one so I can keep one permanently in my bag and one at my house.
Got this as a free gift when I bought my new tire. Works as it should.
TFL Wire Brush (Grip Tape Cleaner)
It works great for the light stuff but for free with my purchase, it's f#%$^&@ awesome! 5 ☆s
Does exactly what it’s supposed to, way better than what I had been using prior