6 – 7 Inch Front, Full Width Alloy, by Ariel – 1956-57 A,B
Although this wheel is an Ariel design there are a surprising number of parts that are different. There are 2 types of brake cam and arm, the Ariel one where the shaft and arm are one piece with a loose cam and another type with a 1 piece shaft and cam with a loose arm. The parts books show that the Ariel type is used on the B group and the other type on the A group, but all photographs show the Ariel type fitted to all models!