Zero Motorcycles XU 2012, Owner'S Manual

Page: 72 / 142

4-23
M1
Rear Shock Adjustment
Spring Adjustment:
Obtaining the correct rear spring preload is critical for
proper handling. The spring rate must be set to
match the weight of the rider. The spring is preloaded
for an 82 kg (180 lb) rider. Heavier riders require
stiffer spring rates. A good approximation of your rear
spring requirements can be found by measuring the
rear suspension’s sag. This measurement will quickly
determine if your rear spring is approximately correct
for your weight. This adjustment is a recommended
guideline; personal riding preference may vary from
the specifications given.
•
Checking Sag
1. Support your motorcycle on a stand
with the rear wheel off the ground.
2. Measure vertically from the rear axle to
the rear fender; mark this spot as it will
be used for other measurements.
3. Record this measurement; this will be
measurement M1.
4. Remove the motorcycle from the stand.
5. Wearing your normal riding apparel, sit
on the motorcycle.
6. Have an assistant hold the motorcycle
up, your feet should be on both pegs.
7. Bounce the suspension a couple of
times.