Front wheel fork has two branch tubes and handlebar shaft defined triangularly in section on upper support, and two fork branches and center tube similarly defined on lower support

摘要

The front wheel fork has an upper support (10), constructed with an upwards projecting handlebar shaft (11) and two separate branch tubes (12), and a lower support (20) with a centre tube (21) which corresponds to the handlebar shaft, and two fork branches (22) to correspond to the two branch tubes. The two branch tubes and handlebar shaft are defined triangularly in section on the upper support, and two fork branches and the center tube are similarly defined on the lower support.