Checking Running Gear; Measuring Wheel Track Offset - BMW R 1100 S Repair Manual

Checking running gear

Measuring wheel track offset

•
Place motorcycle on level ground on centre
stand.
•
Place track alignment gauge,
BMW No. 36 3 920, against the left or right side
of the motorcycle.
L
Note:
In order to use the track alignment gauge on either
the left or right side, simply screw the supports in on
the other side.
•
Adjust support (1) so that the measuring plane is
as close as possible to the wheel centreline. The
gauge must slide freely up to the motorcycle.
•
Adjust measuring stops (arrows) until they con-
tact the rim – not the tyre.
•
Attach hook (2) to wheel spoke to secure the
gauge firmly to the wheel.
•
Align front wheel parallel with the gauge.
•
Measure distance between outer edge of gauge
and wheel rim, using depth gauge (3) or ruler,
and make a note of the distance.
46.18
2
1
•
Calculate wheel track offset S:
•
Wheel track offset S is the distance to left or right
between the longitudinal axes of the front and
rear wheels.
Track offset (S): ........+ 4.5 mm (0.18 in) (= to right)
Permissible wheel track offset (S):
......... ±9 mm (0.35 in): datum is + 4.5 mm (0.18 in)
Key to measurement result:
Minus sign = track offset to left
Plus sign = track offset to right
36 3 920
3
1
1
S460110