I have an O-Ring chain
I know the cleaning procedure is prob different with or without O-rings
W/O O-Rings you can use some pretty aggressive chemicals
With O-rings, you have to be careful to use a solvent that will not degrade the rubber O-Rings
I used WD40 and the petroleum products in the WD40 destroyed the O-rings in about 1/2 a season
For a long time all I have done is mechanical cleaning with a wire brush
But even with a brush there is so much abrasive crap left behind.
Any idea what a good cleaning / degreasing solvent is that will not harm buna N rubber?