Initial Sag Adjustment Of The Suspension - Marzocchi ROCO SHOCK 2007 Handbuch

5.2 Initial sag adjustment of the suspension

The SAG corresponds all'affondamento initial suspension
sinking due to the rider's weight.
How to measure SAG
In order to measure the SAG, you only need to carry out the
following steps.
• First measure the shock eye-to-eye length (H1) without
anybody sitting on the bike (see 1A of Picture 1).
• Sit on the bike and measure the shock eye to eye again
(H2) (see 1B of Picture 1).
• Take the difference between the two measurements; divide
it by the shock absorbers shaft travel.
How to fi nd the best SAG
• Sag settings for XC and All Mountain riding are 15-20% of
the total rear shock travel.
• Sag settings for Downhill and Freeride riding are 25-30%
of the total rear shock travel.
The following calculation is suffi cient to calculate the optimal
SAG for your rear shock:
T = total travel;
S = suggested sinking percentage.
The optimal SAG can be obtained by varying the spring pre-
load (rear shock with spiral spring), or by varying the inline
air pressure (rear shock with air).
N
OTE
Try to fi nd an equal compression of the bikes front and rear
suspension. This can be done by riding in a fl at open area.
Evenly bounce up and down on the bike while keeping most
of your weight on the pedals. Just use your arms for balance.
The best set-up is when the bikes front and rear suspension
compresses and extends at the same rate and speed.
30
SAG = H1 - H2
SAG = T x S
Picture 1 - How to misure SAG