Krush Ultra Degreaser 1LKrush Ultra Drivetrain Degreaser is a powerful citrus based degreaser tailored to meet the maintenance needs of the modern MTB drivetrain. We put our bikes through hell all year round on dry dusty trails full of abrasive grit, from winter shreds through to foot deep mud ruts, pushing our bike drivetrain to its limits. With this kind of punishment its key to take the time after every ride to clean your chain, chain ring, cassette and derailleur with