Bos Idylle 2011-2013 - Manual (Page 3)

Fitting your Idylle onto your bike demands care and attention.
For your safety, please do respect to following instructions.
1.1. The steerer tube
Before cutting the steerer tube, first you have to take some measurements :
Height of the headset, length of the headtube of the frame, height of the stem and then add 5 to 10mm.
With a standard stem clamped on the steerer tube :
Add the length of the headtube of the frame to the height of the headset and to height of the headset plus 5 to 10mm.
With a stem bolted onto the upper crown :
Add the length of the headtube of the frame to the height of the headset plus 5 to 10mm.
CAUTION
The steerer tube should never be removed from the lower crown. If it has been cut too short or in the event of
a frame swap with different dimensions please obtain the correct lower crown/steerer from your distributor.
1.2 . Stanchions and Crowns
Depending on the bike, the position of the stanchions in the crowns may slightly differ. Nevertheless, it is actually
very important to follow all the measurement advices listed below, to ensure a perfect function, and a total security.
When installing the wheel with a properly inflated tyre check to make
sure that the forks achieve minimum tyre clearance. Simply measure
the distance from the top of the leg (lower part of the seal) to the
outer of the lower crown, it has to be between 210mm to 220mm (A).
IMPORTANT
This distance is for tyres of a maximum diameter of 705mm.
The inner distance between the lower crown and the upper crown
should never exceed 157mm (B).
The distance from the axle of the front wheel to the inner side of the
lower crown (bottom cup of the headset) has to be between 565mm
to 575mm (C).
Once the forks assembled to the measurements listed above you can
then tighten but always refer to the recommended tightening torque.
Tightening torque for all bolts of the upper and lower crown : 4 to 5 Nm.
1. ASSEMBLY
B
157
mm
MAX
A
MINI
210
mm
MAX
220
mm
C
565
à 575
mm