You know the craic with mag alloy wheels mate - a tiny scratch and corrosion can set in and they're very porous so need the correct treatment and coatings 
Just go for carbon wheels - it makes sense 
yeah, exactly.... the powder coat that was on it was poor, corrosion had got in everywhere, it was bead blasted back to clean metal, zinc coated and re-powder coated into satin black.
The guy specialises in show stuff so knows his stuff.. very old worldy place where you nip in for a cup of tea while he gets his pics out from 1972
