Yes, your chain is going to get dirty, gritty, greasy, and nasty. But, it isn’t hard to clean when you have the right tools. This 4-piece set includes brushes for the chain, gear set, chainring, and derailleur. But the most important piece is the chain scrubbing machine. Just close the device around the chain, add some degreaser through the top (Simple Green is a good option), and turn the pedal backward about 30 times while holding the cleaner to the chain. Don’t forget the rinse the chain with water and apply oil when your are done.