9 Test method
9.1 Strength test of frame-fork assembly
9.1.1 Vibration test of frame-fork assembly
a) Vibration test The vibration test shall be as follows:
1) with a frame-fork assembly mounted on the stand so as the ground contact points
of both intended wheels are horizontal as shown in figure3, the test shall be
made by application of vertical up-and-downward vibrations under the conditions
given in table 5.
The front wheel attachment shall be freely movable in the lengthwise
orientation.