St029 Stem Cutting Instructions - Cervélo S3 Manual De Montaje

ST029 STEM CUTTING INSTRUCTIONS

With 48 cm and 51 cm S3 frames, the stem steerer will need to
be cut to place the stem in the lowest stack position. Stems for
size 54 cm to 61 cm frames do not require cutting.
Cut Line
Max.25 mm
If the stem steerer is cut to achieve a lower
position, the minimum insert line on the
stem steerer must be moved up by the same
amount to ensure proper clamping.
100 mm
The stem steerer must not bottom out/
contact the tapered portion of the fork
steerer. Damage to the fork or the brake
hose caused by the stem steerer could
result in a loss of control while riding and
potentially serious injury.
1. Use a light coloured grease pencil to accurately mark the cut-off location
on the stem steerer from 5 mm to 25 mm off the bottom edge. See table
on page 19 for the exact number based on the combination of frame size
and desired spacer stack.
2. Insert the ST029 in the Park Tool SG-6 Saw Guide (or equivalent) so that
the cut-off line can be seen clearly through the blade guide in the tool.
3. Using a blade designed specifi cally for cutting metal; proceed with cutting
the stem steerer (as per Park Tool's instructions).
4. Carefully fi le the cut end removing any burrs, adding a radius to both the
inside and outside of the cut edge.
Ensure inside and outside of cut edge is
smooth and free of fork damaging burrs.
Damage to the fork or the brake hose
caused by the stem steerer could result
in a loss of control while riding
and potentially serious injury.
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