check need not be carried out if
either the front or rear wheels have already been failed under
Section 4.2 for unacceptable buckling eccentricity or damage.
A clamp should be used if available. provided It does not obstruct
the straight edge or cord.
If the misalignment is considered excessive, a road test may
be conducted, at the tester's discretion, to access the effect
on the handling of the machine (Reference Page 1, paragraph
Some shaft drive machines and those machines which have been
adapted for use with side car may have a certain amount of parallel
misalignment as standard.
Using a wheel clamp or an assistant
ensure that the front wheel is held upright and in line with
a. place a straight edge or cord against the rear tyre parallel
to it and as high off the ground as other parts (ie silencers,
frame etc) will permit;
b. estimate the gap (if any) between the straight edge or cord
at the rear points where it is opposite the front tyre;
c. move the straight edge or cord to the other side of the motor
cycle and repeat I a. and 1 b. above;
2. Sight along the front wheel and forks and assess any misalignment.
1. Any misalignment which is sufficient to adversely affect
the handling or steering of the machine.