The Muc-Off E-Bike drivetrain tool is a handy tool for cleaning and lubricating electric bike chains without the hassle of bike stands or needing to flip the bike upside down. With this tool, you can lock the crank and sprockets and simply rotate the pedals backward to move and service the chains. The tool is made of CNC-machined 6061 aluminum and includes three differently sized tips that snap into place magnetically. You just place the appropriate tip and rotate the crank backward for maintenance. The tool has a protective silicone sleeve that prevents damage to the crank.