Look AERODESIGN HANDLEBAR 2 Manual página 36

BRAKE ROUTING (Fig.1)
Before routing, your tensioners must be positioned mid-way (15-20mm) and your
handles in the final position.
The brake support is in two parts, one casing on either side of the tensioner.
Pass a section of brake casing (A) from the handle to the handlebar casing cap (31).
The casing goes straight into this piece (31) without an end piece.
Push a section of brake casing (C) fully into the tensioner casing cap (32) as far as
the brake, following the route designed for your bicycle.
Only thread the brake cable (B) into the handlebar.
N.B. : Use brake casings of max. dia. 6mm. "More rigid" casings with larger
diameters are not compatible.
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