BMW Reflector - Bumper Cover (Yellow) | 2007-2013 Manufacturer:Genuine BMW The axle diameter is sized

The axle diameter is sized to twist like a torsion bar under heavy loads absorbing a large portion of the shock transmitted from the wheel into the gearbox

Effective Lubrication: Keeps moving parts operating smoothly and quietly

Most models need six with the exception of 914 models which need only two

preventing the buildup of future grime

Mobility: Permanent fixed wheels with front swivel casters

BMW Reflector - Bumper Cover (Yellow) | 2007-2013 Manufacturer:Genuine BMW The axle diameter is sizedReflector Bumper Cover (Yellow) for 328i (2007 2013), 335i (2007 2013), 328i xDrive (2009 2013), 335i xDrive (2009 2013), 335is (2011 2013), 328xi (2007 2008), 335xi (2008)