BLUE PAPER ONNA · 202220 | ORBEA ORBEA | 21
ø50
ø44
ø62
ø55.95
9
15
GREASE
GREASE
1 2
TECHNICAL MANUAL 21
EN
ASSEMBLY AND SPARES
HEADSET
TYPE ID* OD**
Headset cups
race angle
Preload ring ring/
fork crown race angle
SHIS
CODE
Bearing
dimensions
(Orbea assemblies)
TOP
1-1/8"
Semi integrated
44mm 50mm 45º
36º
It depends on headset
model
ZS44/30 6.5x30.2x41mm
BOTTOM
1-1/2"
Semi integrated
55.95mm 62mm 45º 36º
ZS56/39.8 (Tapered fork)
ZS56/30 (Straight fork)
8x40x51.8mm
* ID: Internal headtube diameter. ** OD: External headtube diameter.
HEADTUBE DIMENSIONS HEADSET SPARE PARTS AND ASSEMBLY
HEADSET SPECIFICATIONS
Different Onna models are assembled with straight 1-1/8" steerer tube forks or with 1-1/8" to 1.5" tapared
steerer tube forks. The headset used for each type of steerer tube is different. Thus, the headset assembled
with straight steerer tubes uses a reducer fork crown race.
01 HEADSET SEMI INTEG. 1-1/8" TO 1.5" FSA ORBIT NO.57E
For tapered steerer tube forks
ART Nº: XA93 QTY.
1.1 Stem topcap. Round
1
1.2 M5 headset preload bolt
1
1.3
1-1/8" starnut
1
1.4
Headset cover
1
1.5
Compression ring
1
1.6
Upper cup+ bearing
1
1.7
Lower cup+ bearing
1
1.8
1.5 fork crown race
1
02 HEADSET SEMI INTEG. 1-1/8" TO 1.5" FSA ORBIT NO.57E-1
For straight steerer tube forks
ART Nº: XA94 QTY.
1.1 Stem topcap. Round
1
1.2 M5 headset preload bolt
1
1.3
1-1/8" starnut
1
1.4
Headset cover
1
1.5
Compression ring
1
1.6
Upper cup+ bearing
1
1.7
Lower cup+ bearing
1
1.8
1-1/8" fork crown race
1
Starnut
Fork´s steerer tube
Tapered
11/8-1.5 forks
Straight
1-1/8 forks
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