TECHNICAL MANUAL
BLUE PAPER ALMA CARBON ·
OMR & OMX 2021
12 | ORBEA
ORBEA | 13
EN
04
WARNINGS OF USE
MAXIMUM TYRE WIDTH
This technical manual specifies the maximum size of the
tyres that can be mounted on the frame. Always follow
these guidelines when installing tyres on your bicycle.
However, the real measurements of the tyre circumfe-
rence and width may change from one manufacturer to
another. When installing a tyre other than that originally
mounted on your Orbea bicycle, check that there is at
least 6 mm between the top and the sides of the tyre and
any part of the frame.
Damage to the frame or components due
to the use of a tyre that does not comply with
these measurements is not covered by the
warranty conditions.
MINIMUM SEATPOST
INSERTION
Always follow the specifications regarding
the minimum insertion depth of the seatpost
or the frame on road bicycles with exclusive
Orbea seatposts. The failure to follow these
instructions can cause stresses on the ma-
terials beyond the conditions for which they
were designed and cause damage not cove-
red by the warranty conditions, as well as
accidents that can result in serious injuries.
MAXIMUM FORK LENGTH
(AXLE TO CROWN)
Always abide by the maximum fork length listed in the
technical specifications section of this manual. The maxi-
mum fork length refers to the distance between the fork
axle and the bottom part of the head tube (axle to crown).
The failure to abide by this measurement and
install forks with a length greater than the
maximum specifications can force the frame
beyond its design characteristics, possibly
resulting in malfunctions of the material that
could cause accidents and serious injuries.
MAXIMUM NUMBER OF HEADSET
SPACERS
Never use more headset spacers below the
stem than those specified for the frame.
Consult the specifications tables to find out
the maximum number of headset spacers
that are acceptable for use on an Orbea
frame. Installing more spacers than those
permitted can stress the materials beyond
the use for which they were designed, which
can cause accidents and serious injuries.
L
INTENDED USE
The intended use of all models is ASTM Condition 3, that
includes Condition 1 and 2 as well as technical natural trails
with jumps and drops up to 61 com.
The use of a bicycle on this terrain requires technical skills
and may cause beginners to sustain injuries.
For information about all ASTM categories, consult the
General User Manual.
HEADSET SPACERS
ABOVE THE STEM
CARBON EXPANDER POSITION INSIDE THE FORK
STEERER TUBE
Never install headset spacers above the stem.
Placing spacers above the stem, especially on
forks with a carbon steerer tube, can cause
the carbon expander inside the fork tube to be
positioned above the lower limit of the steerer
tube, which can stress the materials beyond
the use for which they were designed, possibly
causing accidents and serious injuries.
The length of the fork steerer tube must
always be appropriate for the position of the
stem in the fork. The stem must always be
installed in the steerer tube of the fork so that
both fastening bolts on the back of the stem
are positioned above the surface of the stee-
rer tube of the fork. Never mount the stem
so that the top fastening bolt of the stem re-
mains above the top edge of the fork steerer
tube. This will stress the materials beyond the
use for which they were designed, possibly
causing accidents and serious injuries.
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