The Brough Superior SS100 is back on the road. Venerable British brand Brough Superior, first established in 1919, produced powerful, stylish motorcycles that were widely acclaimed, owned by everyone from T. E. Lawrence (he purchased seven of them in a row) to George Bernard Shaw and Jay Leno. The most well-known model in Brough Superior’s stable was the muscular SS100, which formed a core part of the brand. The numbers of Brough Superior bikes referred to...