1 / Grease the upper seat of your frame and locate a bearing ⑥ on this seat.
2 / Grease the lower seat of your frame and fork, position a bearing ⑥ on your fork, taking
care to place the external chamfer towards the interior of the head tube. Thread the assembly
through the frame.
3 / Slide compression ring ⑤ over the fork as far as the upper bearing.
4 / Slide insert ③ over the fork, aligning it with the pin hole ⑦, then insert pin ④. Make sure it
is correctly centred so as not to obstruct the fitting of lock ring ②.
5 / Tighten lock ring ② on insert ③ (Fig.13) and adjust the headset so that there is no play and
the fork can turn freely without sticking.
6 / Fit the AEROSTEM stem (see AEROSTEM instructions).
Fig. 13
N.B. : the insert ③ is pre-coated with threadlock. It must not be lubricated. However, after
being removed and refitted several times, a drop of normal threadlock will have to be ap-
plied (type LOCTITE 243
Fitting / Adjusting headset
-
+
).
TM
Fig. 14
EN
33