Orbea BLUE PAPER ALMA CARBON OMR 2021 Technical Manual page 14

2 6 | O RB EA
HEA D SET
OC3 STEM ASSEMBLIES.
WITH BLOCKLOCK HEADSET
Alma OMX and some models and options in Alma OMR
include the Blocklock headset option with the OC3 MTB
stem, which limits the steering angle to 164º without
affecting maneuverability to avoid impacts of the levers on
the frame in case of an accident, specially in assemblies
without any headset spacers or with the stem positioned
with a negative angle.
HEADSET
TYPE ID* OD**
SPECIFICATIONS
1-1/8" Semi
TOP integrated 44mm 50mm
BlockLock
1-1/2"
BOTTOM 52.1mm 56mm
Integrated
* ID: Internal headtube diameter.
** OD: External headtube diameter.
T EC HN I CAL M A NUAL
The Blocklock assemblies include the OC3 MTB stem,
which determines also the use of specific OC headset spa-
cers, headset cover and stem topcap.
BEARING SHIS BEARING
ANGLE CODE DIMENSIONS
Semi integrated Orbea Orbea specific
Replace assembly specific Replace assembly
Angular contact bearing
45º IS52/40
40x52x7mm
B LUE PAP ER A L M A CA R B O N · O MR & O MX 2 0 2 1
GREASE
0 2 B LO CK LO CK HEAD S ET C OV E R AS S E MB LY
ART Nº : X0 300 000
2.1 BLOCKLOCK HEADSET COVER TOP
2.2 BLOCKLOCK HEADSET COVER BOTTOM
2.3 BOLT M4x16
0 3 B LO C KLOCK C U P AN D BEAR IN G ASS E M B LY
ART Nº : X0 310 000
3.1 BLOCKLOCK COMPRESSION RING
3.2 BLOCKLOCK CUP+BEARING ASSEMBLY
0 4 BOT TO M BEARIN G KI T
ART Nº : X0 220 000
4.1 ANGULAR CONTACT BEARING 40x52x7
4.2 FORK CROWN RACE 1-1/2"
O R B EA | 27
EN
2.2
2.3
2.2
3.1
3.2
4.1
4.2
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