7
8
ST31 STEM
Cervélo ST31 Stem
(Carbon)
Rubber Plug for
ST32 Top Cap
PL-338
Preload Fixing
Screw
M6 x 25
ST32 Stem Top
Cap STC-305
Use only original Cervélo components & included
hardware specified for handlebar, stem, and fork
assembly. Failure to use the specified parts and to
follow these instructions may result in a loss of
control while riding and serious injury.
Do not
flip ST31
stem for
additional
stack.
Ensure upper
and lower
faceplate
gaps are
even.
To mount a cycling
computer or accessory
such as a light or
camera, use Accessory
Mount Kit-Front MT-
LM-F-004 See page
10 for assembly
instructions.
Tighten fork
steerer fixing
screws to 5Nm.
M5 x 16mm
ST31 stem
faceplate fixing
screw (Actual
size)
Tighten stem
faceplate fixing
screws to 6Nm.
1. Coat the surfaces where the stem body and faceplate contact the
handlebar clamping area (as shown right) with carbon assembly
paste.
2. Center the handlebar against the stem body and secure it in place
by mounting the faceplate and tightening all faceplate fixing screws
finger-tight.
3. Tighten the faceplate fixing screws evenly following a star pattern
until the upper and lower stem to faceplate gaps are even.
4. Perform final tightening in a star pattern using a torque wrench to
6Nm maximum.
80mm ST-C031-80
90mm ST-C031-90
100mm ST-C031-100
110mm ST-C031-110
120mm ST-C031-120
130mm ST-C031-130
16mm
