With the opening of the M40 right through to its link up with the M42 near Birmingham in the early 1990s, much of the route has been downgraded, and renumbered accordingly. The section between Bicester and the M42 near Solihull no longer possesses this number as a result.
The Tring bypass was built in 1973 as a motorway, the A41(M), although this section has been downgraded since. The A41(M) was originally designed to run from Tring to what is now M25 junction 19a. This section was finally built in the late 1980s, although to a lower standard and only as far as M25 junction 20.
The A41 is a major trunk road in England, United Kingdom that links London to Birkenhead.
At junction 5 of the M42, the A41 follows its old course.
Further north, the road bypasses Solihull, goes through the city centres of Birmingham and Wolverhampton, and passes close to the RAF Museum at Cosford and one of the sites of the V Festival at Weston Park near to M54 junction 3.
Meanwhile, the A41 began at a junction with the A5 north of Edgware (the current A410) and went through Stanmore (current A4140) and Watford (current A411).
The A41 between junction 19 of the M25 and the eastern end of the Tring bypass was opened to traffic in 1993.