DAHON X-FUSION User manual
USER’S MANUAL
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Congratulations on your purchase of this X-Fusion shock absorber.
As a manufacturer and designer of innovative, high-end cycling
products, our reputation for quality and performance is built upon
the thorough testing of every product to ensure it’s function and
durability.
Please read this manual carefully as it contains important informa-
tion about the proper installation, use, care and maintenance of
your shock.
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: contents
English 4
Deutsch 21
Italiano 39
Español 57
Français 75
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: Consumer Safety
Before riding, please read this manual’s section on proper set-up and use of your new X-Fusion
shock. If you are unsure of the proper use or function of your new shock, please call your nearest
X-Fusion Service Center for further information.
Should your shock show signs of air or oil leakage, or make any unusual noises during use, please
stop using the product immediately and return it to your dealer or authorized X-Fusion Service Center
for inspection. Riding with an incorrectly installed, malfunctioning or damaged shock can be danger-
ous and could cause serious rider injury or damage to the product.
All X-Fusion shocks utilize a high pressure nitrogen charge. Do not attempt to open or service the
shock as discharging the pressure is dangerous and can cause serious personal injury or damage to
the product.
: Service
X-Fusion has Authorized Service Centers located in various countries around the World. Please con-
sult the list of our Service Centers located on the back cover of this Manual or for the most up to date
list, please visit us on the web at www.x-fusion-shox.com
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Shock Sag
Compression Damping
Rebound Damping
Spring Rate
The amount by which the shock compresses with the rider
seated in the normal riding position. The recommended amount
of sag is generally 20-30% of the total shock travel.
The damping force generated by the shock as it is being com-
pressed. Generally, compression damping is speed sensitive,
meaning the faster the shock travels the higher the force of
compression damping it produces.
The damping force generated by the shock as it returns to full
extension.
Dened as the amount of force required to compress the spring
a given amount. Generally it is referred to in pounds per inch
(lbs/in.)
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Spring Set-up for Air Shocks and Coil shocks
: Shock Sag (all Air and Coil models)
Note: If your Bicycle Manufacturer provided directions on setting the sag, please follow these instructions.
Setting the correct sag allows your shock and frame design to work in harmony, ensuring the best possible perfor-
mance from your rear suspension system. Please follow the instruction for this closely.
: Measuring Shock Sag, Air Shocks (O2, O2-Rpv, O2-RL, O2-RC, O2-PVA)
First, while the bike is in an unloaded state, slide the o-ring up to the air sleeves dust seal. Now sit on the bike in your
normal riding position. The air sleeve will push the o-ring down the damper body and it will stay at the sag position.
Let the bike return to an unloaded state. Measure the distance between the o-ring and the dust seal of the air sleeve to
obtain the amount of rider sag.
: Setting Shock Sag/ Spring Rate, Air Shocks (O2, O2-Rpv, O2-RL, O2-RC, O2-PVA)
1.Remove the air valve dust cap
2.Thread on your shock pump onto the valve until the gauge show pressure, be careful not to over tighten the pump.
3.If the sag is greater than that recommended by the bike manufacturer, add air pressure to the shock. If the sag is less
than the recommended amount, then release air pressure.
4.Unthread the pump from the shock and measure the sag again.
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5.Repeat steps 1 thru 4 until you get the desired amount of sag. The exact air pressure required to achieve the correct
sag depends on your weight and the leverage ratio of the frame design. Generally, the range of air pressure needed falls
between 100psi and 250psi. Do not exceed 300psi. Make note of the air pressure for easy set up next time.
: Negative Spring
Note: The negative spring air pressure for all X-Fusion Air Shocks is set automatically at the time of assembly. There is
no need or provision for adjustment.
: Measuring Shock Sag, Coil Shocks (Glyde-Rpv, Glyde-RL, Vector-Rpv, Vector-RC, Vector-DH)
First, while the bike is in an unloaded state, measure the distance between the shock’s mounting bolts. Now sit on the
bike in your normal riding position. Measure the distance between the mounting bolts again. The difference between the
rst and second measurement is the amount of rider sag.
: Dual Chamber (DC) Shocks
02 Shocks can be equipped with a Dual Chamber air sleeve. This is called DC Technology. DC Technology pro-
vides several advantages over conventional air sleeves.
: Setting up a shock with DC Technology is easy.
1. Follow the instructions for setting sag found on page 6.
2. When the correct sag is set, attach the pump to the Schrader valve on the minor chamber.
3. Start with an air pressure about half of the pressure in main chamber. Check for full travel.
4. If full travel is achieved too easily, add air pressure in 5psi increments until full travel is just barely
achieveable.
5. Next, adjust where in the stroke the spring ramp occurs by rotating the hex behind the Schrader valve with a
13mm open end wrench. Turn it clockwise to cause the ramp to occur earlier, counterclockwise for later.
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The DC air sleeve can be rotated 360° to allow for an interference free frame t. To rotate the air sleeve simply let the
air out of the main air chamber, turn the air sleeve to the desired location and re-pressurize the shock.
: Setting Shock Sag, Coil Shocks (Glyde-Rpv, Glyde-RL, Vector-Rpv, Vector-RC, Vector-DH)
1. Adjust the threaded spring pre-load collar to zero by turning the threaded collar away from the spring until all pres-
sure is released from the spring. Adjust the threaded collar towards the spring until it touches the spring but adds no
pressure.
2. While the rider is seated in a normal riding position, measure the sag length
3. If the sag is greater than that of the manufacturer’s recommendation, tighten the threaded pre-load collar until the
correct sag is obtained. If the sag is less than the manufacturer’s recommendation, a softer spring rate is needed.
If the spring rate is a correct t to the rider’s weight, the proper amount of sag can be achieved within the rst 3 com-
plete turns of the thread pre-load collar. If after 3 complete turns, the proper sag is not achieved, then this is a good
Length
DC air sleeve
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indication that a stiffer spring rate is needed. Never attempt to compensate for too soft a spring rate by over pre-load-
ing a spring. This will damage the spring and could result in injury to the rider.
: Changing Springs
1. Remove the shock from your bicycle
2. Loosen the threaded pre-load collar and remove the spring retainer’
3. Slide the spring over the shaft eyelet. Remove the mounting spacers if necessary.
(Note: For the Glyde-RL, remove the threaded pre-load collar from the shock body and slide the spring off the bottom
of the shock. For the Vector DH, you must remove the rebound damping adjust knob.)
4. Install new spring and reinstall the spring retainer (and threaded collar)
: Damping
: Rebound
The rebound damping adjustment is a feature that allows the rider to ne tune the rebound damping characteristics of
the shock to better match their spring rate, riding style and the terrain being ridden.
Compression damping is the force generated by the shock while being compressed. Compression damping aids in
the overall rmness of the suspension system as well as offers stability to enhance rider control. To much compression
damping will make the shock stiff and noncompliant to bumps. To little compression damping results in a soft ride and
excessive bottoming of the suspension system.
: Rebound Damping Adjustment (O2-Rpv, O2-RC, O2-PVA, Glyde-Rpv, Vector-Rpv, Vector-RC, Vector DH)
Turning the red adjuster knob clockwise until it stops is the max rebound damping setting (slowest). As you adjust the
knob in a counterclockwise direction from the max position, the damping rate decreases allowing the shock to return
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quicker. When rebound damping is set correctly the shock will return quick enough to
keep time with the bumps of the trail.
If a shock is returning too slowly, the shock will compress upon bump impact but will not
return to full extension in time for the next bump impact. This will result in a harsh ride
due to the fact that the rebound damping is holding the shock down into a stiffer part
of the spring curve. If a shock is returning too quickly, the rear wheel will “hop” off the
ground after bump impact.
: Rebound Damping and Firmness Adjustment (Glyde-RL, O2-RL)
Move the lever in a counterclockwise direction until you contact a positive stop. This is
the minimum rebound damping setting (quick returning). Moving the lever in a clockwise
direction from the 3 o’clock position (positive stop) toward the 8 o’clock position will
increase the amount of rebound damping (slowing the return). Adjusting the lever further
from the 8 o’clock position to the 9 o’clock position will increase compression damping
to the point of rmness.
: Compression Damping/Firmness Adjustment (O2-RC)
To adjust the compression damping, turn the blue compression adjustor lever in a
counterclockwise direction until you contact a positive stop. This is the minimum com-
pression damping setting (softest). From this point, as you turn the lever in a clockwise
direction, the compression damping force will progressively increase to a point of rm-
ness at the end of the lever’s stroke.
Glyde-RL O2-RL
O2-RC
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