Muc-off E-Bike Drivetrain Tool Description: If you own an E-Bike, the Muc-off Drivetrain Tool will revolutionize lubing and cleaning of the chain. Simply install one of the included bits which will snap into place with a magnetized connection. Then insert it into a chainring bolt, the crankarm will contact the silicone sleeve when pedaling backward which will then engage the chain. Magic! You can now easily whip down the chain and apply a fresh coat of chain lube. Note: It's recommended to disconnect the battery before allowing the sprocket to spin backward. Features: Silicone sleeve protects crankarms when backpedaling Rubber O-ring keeps contaminants out to preserve the tool bits Corrosion-resistant magnet snaps tool bits into place 6061 Aluminum Body Comes with a handy lanyard and carabiner clip Includes: 5 and 6mm Allen bits T30 Torx bit Lanyard and clip