45
Clamping with two bolts in line
(a)
Release both bolts at the top of the seat post. Turn the bolts two to three
turns anticlockwise at the most, otherwise the whole assembly can
come apart. Move the saddle forward or backward as desired to adjust
the horizontal position. You may have to give the saddle a light tap to
move it. Please observe the markings on the saddle rail.
Having found your preferred position, make sure both clamp halves fit
snugly around the saddle rails before tightening the bolt(s) to the correct
torque as prescribed by the seat post manufacturer.
Tighten both bolts evenly
(b)
so that the saddle remains at the same
angle. If you wish to lower the nose of the saddle a little, tighten the
front bolt clockwise. You might have to loosen the rear bolt a little as
well. To lower the rear part of the saddle, the rear bolt has to be tight-
ened clockwise and the front bolt to be released, if necessary.
After fastening the saddle, check whether it resists tilting by bringing
your weight to bear on it once with your hands at either end of the
saddle
(c)
.
G
The saddle clamping bolts are among the most delicate
bolts of the entire bicycle. Therefore, strictly observe the
recommended minimum and maximum torques. Do not
under- or overtighten. You can find these in the chapter
“recommended torque Settings for components”
, on the
components themselves and/or in the instructions from the
parts manufacturers, which you can find on the enclosed
CD. Always use a torque wrench.
G
Check the bolts by using a torque wrench
(d)
once a month
according to the values indicated in the enclosed operating
instructions or directly on the components.
G
Poorly tightened or loosening bolts can fail.
risk of acci-
dents
!
Single bolt system
The single bolt seat post standard clamp is designed to interface with
most performance bicycle saddles featuring round 7 mm diameter rails,
including all saddles. Replacement outer clamps are also available to
accommodate ovalized rails of 8 mm height x 8.5 mm width, as well as
carbon saddle rails beyond the 8 x 8.5 mm dimensions. Contact your
WHEELER bicycle dealer if you are uncertain what type of rails your
saddle has or if you require more information.
To install the saddle, unscrew the fixing bolt as far as possible
(e)
with-
out loosening from the lock nut on the other side of the clamp assembly.
It is generally not necessary to take the mechanism completely apart
if it is already equipped with the correct outer clamps for your saddle.
If you do find it necessary to unscrew the single fixing bolt completely,
proceed to remove it from assembly. This will free up outer clamp piec-
es. Inner clamp pieces are held in position with rubber retention plate
(leave in place). Install saddle rails into inner clamp pieces, add outer
pieces and re-insert fixing bolt.
If the width of the saddle rails does not fit exactly into the clamp grooves,
do not try to force them in! This can cause the clamping mechanism or
the saddle rails to break, resulting in a crash and potential injury to the
rider. Use a different model saddle or consult your WHEELER bicycle
dealer for help.
If the saddle rails fit into the seat post clamp grooves, slide the saddle
so that the clamp is positioned midway along the rails’ total length.
Then position the saddle so that its upper surface is parallel to the
ground. Turn the bolt gradually and ensure that
1) the clamp assembly is still properly mounted on the carbon fiber
seat post head and
2) that the clamp is tightening evenly around each rail
(f)
.
Once there is uniform hold on both rails, tighten the bolt gradually with
a torque wrench
(g)
until you’ve reached specified maximum torque,
which is listed on the seat post in newton-meters (Nm).
Never exceed the recommended torque, specified on the components.
a
b
c
d
44
e
f
g
h
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