Lifeline multi function cleaning brushlifelines multi function brush is the perfect solution for cleaning your drivetrain it has three different brush types that can fit between your front chainrings and reach into those hard to reach areas of your derailleurs it also features a serrated handle that fits between the cogs on any cassette for removal of foliage and any other residual debris when used along with your favourite cleaning solution it will have your drivetrain gleaming in no time