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How to find the best
sag
The best sag for cross country forks is
15-20% and for free ride forks 25-30% In order to
calculate the best sag for your own fork, you will need to make the
following calculation:
SAG = T x S
T = Total travel
S = Suggested compression
percentage
The best sag is obtained by varying
spring preload ( coil spring forks ) or by varying positive air pressure (
air spring forks )
How to measure
sag
The sag corresponds to the forks travel
( compression ) due to the riders weight.
In order to measure the sag, you need to
carry out the following steps:
On the leg portion of the fork (
stanchion ) measure the distance between the lower crown and dust seal ( see A ) note this value as H1
While sitting on the bike, repeat this
measurement ( see B ) note this value as H2
SAG = H1 less H2
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