High Quality Content by WIKIPEDIA articles! The A41 is a major trunk road in England that links London and Birkenhead, although it has now in parts been superseded by motorways. It passes through or near various towns and cities including Watford, Kings Langley, Hemel Hempstead, Aylesbury, Solihull, Birmingham, West Bromwich, Wolverhampton, Newport, Whitchurch, Chester and Ellesmere Port.