Why has my wheelhead corroded?

Many wheel manufacturers use aluminium alloy to produce their wheelheads. Aluminium is very resistant to corrosion. This is because aluminium generates a protective barrier when it comes into contact with oxygen and this barrier protects the aluminium from corrosion. However, this oxide barrier is not physically strong and clay can erode it.

Provided that the wheelhead is cleaned and dried immediately after use, the oxide barrier is regenerated. However, when clay or water is left in contact with the wheelhead for an extended period of time, the lack of oxygen prevents aluminium oxide formation. As a result, corrosion can appear on the surface. This is not a product fault, it is simply a chemical reaction.

Shimpo aluminium alloy wheelheads are uncoated and the best advice is to clean and dry the wheelhead thoroughly after use to allow the metal to breathe and regenerate the protective oxide layer.

If marking occurs, the surface can be gently polished with acetone and Ajax powder. Keeping it clean and dry will prevent further corrosion. 

If you have any more questions about wheelheads, please contact us.