HP Velotechnik Spirit - Manual (Page 47)

Maintenance and car
e
HP
Velotechnik
45
Rear suspension element
Changing the springs of the rear su-
spension element
You can buy the spring for the rear suspension
element in different spring stiffnesses from
your dealer.
We recommend the following spring stiffnes-
ses, depending on the overall weight:
up to 80 kg (183 lbs): 650 lbs./inch
up to 100 kg (230 lbs): 850 lbs./inch
up to 130 kg (286 lbs): 1100 lbs./inch
Spring lengths:
DV22: 70–90 mm (2 3/4 – 3,5 inch)
(Length of the spring element: 150 mm)
In order to change the spring you will have to
remove the upper screw and swing away the
rear frame.
Hold the main frame of your bicycle in a work
stand.
If there is a safety ring at the thread of the su-
spension element move it to the end so you
can unscrew the adjustment ring completely
and then turn it to the outer position at the
end. Remove the slotted spring retention disc
at the other end.
Loosen the screws of the rear suspension ele-
ment with two hex keys and push the screw
out of the suspension element’s eye.
Remove the spring from the suspension ele-
ment and put in the replacement spring. Make
sure that the new spring has the same diame-
ter and length as the old spring and that it lies
safely on the adjustment ring.
Put back the slotted upper spring retention
disc on the piston rod. If necessary, compress
the spring a little bit with a screw driver.The
spring retention disc has to match its seating
at the rear end of the suspension element.
Secure the spring by tightening the adjustment
ring until the spring doesn't have any play any-
more. Push the safety ring back into the slot
on the thread.
Move the rear swing arm back up and connect
the rear end of the suspension element with
the rear swing arm with the bolt. Lubricate the
bolt thoroughly. Secure the screws of the su-
spension element with threadlocker medium
and tighten the screw with 6-8 Nm.
Readjust the spring preload as described on
page 19.
Danger! If the bicycle does not stand on
the ground while undoing the screws of the
suspension element, the rear swing arm may
come down uncontrolled afterwards and
hurt you seriously. In addition to this, the ca-
bles of the gear system and the brakes may
overstretch or bend and you would have to
replace them. Ensure that the rear swing
arm comes down in a controlled and gentle
fashion by putting up a solid string or cable
tie between the main frame and the rear
swing arm.
Danger! When the bicycle is standing on
the ground, the frame and the swing arm co-
me up against each other. Please make sure
that this happens in a controlled and gentle
fashion. Put a cloth between the contact po-
ints.Take care not to squash your fingers.