Originally Posted by
rgconner
Harbor Freight has an inexpensive ultrasonic cleaner.
Originally bought to clean vintage MC parts, it now does my chains/bike parts as well.
Hot water, degreaser... toss the chain and cluster in, sometimes dismount the rear derailleur and lower it into the bath too.
They come out sparkling clean!
Relube the jockey wheels with grease and it is good to go!
I actually have one of those! I used to rotate chains every 1000 miles or so and get them all super shiny clean but... replacements are what, $30 - $40 and I have way better things to do with my time.