Dunlop composite wheel maintenance & repair options Enthusiasts recognise the Dunlop composite wheels chosen by MG in 1973 for the MGBGTV8 as a distinctive original feature of the model. But the wheels need careful care and maintenance to help resist the development of corrosion on the chromed steel rims and in the crevice where the alloy centre and rim is joined. If corrosion develops and becomes a concern then what are the refurbishment, restoration and replacement options? Our two page article reviews these issues and the available options including a guide to maintaining the wheels to try and manage corrosion. The article also has a personal technical review of the Dunlop composite wheel and the refurbishment, restoration and replacement options. Article Posted: 260821 Corrosion issues with Dunlop composites MGBGTV8 owners have found that over time the recess, where the inner edge of the steel rim is attached to the alloy centre, can attract rust and, if it's not controlled with regular cleaning and polishing, corrosion can develop to an extent the wheels reach a sad state and need refurbishment or more serious restoration. Intermetallic galvanic corrosion The combination of iron and aluminium creates a galvanic corrosion risk, particularly in the hostile environment experienced by a road wheel. Galvanic reaction issue Maintenance & repair options See our guide to maintaining the wheels and the refurbishment, restoration and replacement options if the wheels become corroded. Options Design overview and salvage prospects To a road wheel designer in the late sixties the prospect of combining the impact advantages of a steel rim with the rigidity and weight saving properties of a cast aluminium centre must have been irresistible. In Dunlop’s case what followed was their Formula D4 alloy/steel wheel which was adopted by MG for their MGBGTV8. The wheel was a distinctive feature but from a twenty-first century perspective, the composite wheel is something of a compromise, offering relatively few advantages over single-material alternatives while introducing some disadvantages of its own. Jim Livingstone has an MGBGTV8 and before retirement had a career in motor engineering. He offers his views on the Dunlop composite wheels and the refurbishment, restoration and replacement options. Article - page 2