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Quick
start
4, impasse Léonce Couture
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F31200 Toulouse
Tel
: +33 (0)534 25 33 66
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fax
: +33 (0)534 25 33 60
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We thank you and congratulate you for choosing a BOS product, designed and developed by enthusiasts and
handmade with care in France.
Please read carefully the user manual included in your product box, and also available in the download section
on BOS’s website. It contains the important safety, maintenance, and warranty information you need in order
to safely install and use your BOS suspension as well as the detailed set-up, tuning, and service information.
The knowledge of your product will make its use more pleasant and more efficient.
Spring
The stiffness of the spring should be adapted to your weight and your bike. During your order you have
informed the model of your bike and therefore you get the recommended spring by our studies. Please refer to
the "Chart list" available in the download section of www.bos-suspension.com for more details on available
springs.
Preload
The spring preload determines the riding height of your bike. Please refer to the "Chart list" available on our
website to know the preload settings recommendations in accordance with your bike, your weight and your
spring model.
Standards adjustment
To start your adjustment, turn the knob clockwise until it stops (= click 0). Then, clicks are
counted turning the knob in the anticlockwise direction.
Your shock absorber Syors includes 4 hydraulic adjustment possibilities whose basic recommended values
are listed in the following table:
Compression
Rebound
(Black knob on foot)
Platform
(Red lever on head)
High Speed
(black hexagonal nut 11 mm)
Low Speed
(4 mm golden hexagonal screw)
10
10
10
Your choice
Low and high speed compression
Rebound
Platform
Kick Valve
Your Syors shock absorber is equipped with the kick valve technology derived
from the WRC rally competition, which settings are adjusted during manufacture.
This feature makes possible to erase very high acceleration shocks with small
amplitudes (sidewalks, steps, roots struck at high speed riding).
Soft
Hard
Fast
Slow
Soft
Hard
