21
TECHNICAL SPECIFICATIONS
HEADSET COMPRESSION SCREW
AERO TOP CAP
EXPANDER EXPANSION BOLT
MAX TORQUE 3 Nm
(internal screw)
STEM SCREW
MAX TORQUE 5 Nm
EXPANDER
MINIMUM GAP 3 mm
MAX GAP 4 mm
FORK STEERER
5 mm AERO SPACER
REQUIRED
10 mm OPENABLE
AERO SPACER
OPTIONAL
20 mm OPENABLE
AERO SPACER
OPTIONAL
AERO HEADTUBE COVER
REQUIRED
1. Replacement of the original headset topcap with the Alanera topcap
(included). Two topcaps are supplied: one compatible with headtubed of 46
mm (9) and one of 56 mm (10). With this last one also the compression ring
has to be replaced with the one supplied (11).
2. Install spacers on the fork steerer above the top cover following below
instructions:
− It is mandatory to use the 5 mm Aero spacer (6) and it must be installed
directly under the handlebar stem.
− 10 and 20 mm Aero spacers are optional. They can be used to adjust the
stack height according to the desired handlebar position.
−
The gap between the top of the handlebar stem and the top of the fork steerer
must be within a range of 3 to 4 mm. If necessary, cut fork steerer according
to manufacturer’s instructions.
Ensure there are no sharp burrs on the steerer tube.
WARNING
: Do not put spacers above the stem. The lower edge of the stem,
which applies pressure on an area not supported by the expander, will cause
fork steerer ovalization and dangerous cuts and serious risks for your safety.