We tend to favor biodegradable degreasers, and any other products for that matter, when possible. The caveat being that those products do what they are supposed to do. We're happy to report that Motorex Easy Clean Chain Degreaser does as advertise, and it does it well. It's a powerful degreaser that works quickly and effectively cutting through the oil/dirt conglomeration that has accumulated on our drivetrain, making the whole process of cleaning pain-free. Simply spray it on and rinse with water. Your chain will be sparkling clean and ready for some chain lube. If you've been neglecting bike maintenance, our favorite method is filling up a chain cleaner with the stuff and running the chain through it maybe 30 revolutions. Let that sit as you scrub the cassette and chainrings with a stiff brush before you hose everything off. You'll be amazed at how clean everything becomes and how much more efficient your drivetrain feels. Motorex Easy Clean Degreaser also makes for an excellent cleaner when overhauling bearings. Soak a rag with degreaser and wipe down bearing races or any other rolling surfaces for a super clean finish that's ready for fresh grease.
