Owner`s manual

General Operation
4.19
9. Record this measurement, this will be measurement
M2.
10.Subtract the second measurement (M2) from the first
measurement (M1).
Example:
MEASUREMENT OPERATOR VALUE
M1 23.62 in (600 mm)
M2 - 21.65 in (550 mm)
Sag = 1.97 in (50 mm)
The total sag (in example above) is 1.97 in (50 mm). The
recommended total sag is 2.3 in to 2.9 in (69-76 mm). If
the sag is not correct, the spring pre-load should be
adjusted. See
Spring Pre-load Adjustment”, on page 4-20.