CeramicSpeed is known for their pulley wheels, a system that helps reduce friction in your drivetrain. To keep the bearings of the pulley wheels functioning at their highest level, you need the UFO Pulley Bearing Oil. Simply add the oil to the outside of the bearing seal after you ride in wet conditions or wash your bike. One or two drops is all you need. The OSPW system has two lubrication points at the back cage plate. The CeramicSpeed UFO Pulley Bearing Oil keeps your system working like the day you bought it.