SILCA Ultimate Brake and Drivetrain Cleaner for Bicycles, best for disc brakes chains and cassette, 16 ounce spray bottle, purple foam encapsulates grit and grime

Disc Brake Cleaner: Effectively removes brake dust, road grime, and oil from disc brakes for road, gravel, and mountain bike set-ups. leaves behind no residue.. Drivetrain Cleaner: Cleans and degreases bicycle drivetrains, including chains and cassettes, for optimal prep for bike lubes and waxes. Effectively cleans all alloy components. Encapsulates Oil and Dirt: This unique formula encapsulates oil and dirt, making it super easy to just spray on, let it foam, and then rinse it off thoroughly with water.. Color-changing formula: The product sprays on clear surfaces and attacks oil and dirt. Foam turns purple within 3 minutes, showing you the reaction the cleaning liquid has with the contaminants.. Step 1 of the bike spa collection Spray On and Let Foam: Convenient spray-on application and foaming action for initial decontamination of bicycle drivetrains and components