ARGON18 GALLIUM CS 281A User manual

GALLIUM CS 281A: ASSEMBLY GUIDE
Revision 1.0 - 2019.01.09 - Valid for MY2019 Gallium CS

GALLIUM CS 281B: ASSEMBLY GUIDE
Revision 1.0 - 2019.01.09 - Valid for MY2019 Gallium CS

Assembly overview. . . . . . . . . . . . . . . . . . . . . . . .............................. 2
1. Frame inspection . . . . . . . . . . . . . . . . . . . . . ............................... 3
2. Frameset Parts . . . . . . . . . . . . . . . . . . . . . .................................. 4
3. Parts’ SKUs and descriptions. . . . . . . . . . . . . . . . . . . . . . . . .................. 5
4. Headset installation . . . . . . . . . . . . . . . . . . . . .............................. 6
5. Cables & housing installation . . . . . . . . . . . . . . . . . . . . . . . . . ............... 7
6. Electronic drive-train specication . . . . . . . . . . ........................10
7. Saddle adjustment. . . . . . . . . . . . . . . . . . . . . . . . ..........................15
8. Derailleur hanger adjustment. . . . . . . . . . . . . . . . . . . . . . . . ................16
9. Appendix 1. . . . . . . . . . . . . . . . . . . . . . . . .................................18
10. Min/Max Seat Post Insertion........................................19
For the warranty to be valid, the bicycle must be fully assembled by an authorized Argon 18 dealer. High-end components, particularly carbon
parts, need extra care when assembled. Those components must be installed using a calibrated torque wrench to make sure every bolt is at the right
torque setting to prevent damage.
No more than 30mm of spacer can be place between the stem and the top cap of the 3D system.
And the use of more than 5mm spacer on top of the stem could void the eciency of the compressor.
These practices will automatically cancel any warranty claim against the manufacturer.
GALLIUM CS 281A / 281B: Table of contents

2. Frameset parts 3. Headset installation
4. Cable housing installation
IMPORTANT NOTICE: It is easier to install the
cable housings before the bottom bracket, crank
& fork.
6. Seatpost installation 7. Derailleur hanger adjustment
2
GALLIUM CS 281A / 281B: Assembly overview
5. Electronic drive-train cable
routing specication
1. Frame inspection

Parts installed on the frame Description Screw Torque Detail
type Nm
Seatpost, Ø 27.2mm Seatpost Carbon paste
Front derailleur hanger Screw 3mm 3Nm Loctite
Rear derailleur hanger Screw (2) 3mm 4Nm Loctite
Bottle cage Screw (4) 4mm 3Nm Grease
Seatpost collar Clamp 4mm 6Nm Grease
Rear derailleur cable stopper Screw (2) 2mm 2Nm Loctite
Bottom bracket cable guide Screw 5mm 3Nm Grease
When assembling a new frame, be sure to check if the following parts are assembled correctly.
3
GALLIUM CS 281A / 281B: 1. Frame inspection

GALLIUM CS 281A / 281B: 2. Frameset Parts
4
FK.GALLCS.XXS-XS.281A
FK.GALLCS.S-XL.281A
FK.GALLCS.XXS-XS.281B
FK.GALLCS.S-XL.281B
SP.GALLCS.281A38257 38260 38446 38661
36197
36682
38252
38256
38259 38253
38879
38251
37830
38316
38258
38891 38254
Images are for reference only. Proportions are not accurate.
8039180392

GALLIUM CS 281A / 281B: 3. Parts’ SKUs and descriptions*
5
No. Name Assembled on A18 SKU# Qty
# Parts already assembled
# Parts
5 Headtube cable stopper 38259 2
6 Di2 cable grommet 38251 1
23 FD round Di2 grommet 38891 1
22 Head tube Di2 grommet 38252 1
21 Head tube plug 38254 2
9 Headset No 37 + 3D with compressor 38661 1
9.1 15mm Spacer for 3D Headset No 37 80391
9.2 25mm Spacer for 3D Headset No 37 80392
24 Internal Di2 battery support for Gallium Pro seatpost 38446 1 set
18 Di2 BB recess cover guide with screw 38260 1
25 Oval plug Frame 38253 3
Gallium CS Frame 281A -OR- - - 1
Gallium CS Frame 281B
Gallium CS Fork 281A Size XXS-XS -OR- - FK.GALLCS.XXS-XS.281A
Gallium CS Fork 281A Size S-M-L-XL -OR- FK.GALLCS.S-XL.281A
Gallium CS Fork 281B Size XXS-XS -OR- FK.GALLCS.XXS-XS.281B
Gallium CS Fork 281B Size S-M-L-XL FK.GALLCS.S-XL.281B 1
8 Gallium CS Seat Post Assembly - SP.GALLCS.281A 1
8.1 Hex cap screw ( M6* 28mm) Seatpost 1
8.2 Cylinder nuts Seatpost 2
8.3 SP special bolt ( M8*38mm) Seatpost 1
8.4.1 Rocker Seatpost 1
8.4.2 Rail clamp Seatpost 1
8.6 Convex M6 washer Seatpost 1
7 Rear derailleur hanger with screws Frame 37830 1
10 Front derailleur hanger with screws Frame 36197 1
11 Seat Post clamp with screw and washer Frame 38256 1
19 BB cable guide with screw Frame 38257 1
12 BB cable guide pipe Frame 38258 1
13 Screw for water bottle cage Frame 38316 4
4 TT plastic cable stopper Frame 38756 1
3 Removable CS cable stopper with screws Frame 36682 1
*Except for the frame itself, which is not sold as a spare part, all parts can be ordered by refering to their respective SKU number.

Install the 3D headset (9) according
to the presst assembly guide. You
can choose from 3 dierent heights :
25mm, 15mm or 0mm.
6
GALLIUM CS 281A / 281B: 4. Headset installation
9

7
GALLIUM CS 281A / 281B: 5. Cables & housing installation
1. Install the front and rear derailleur
cable starting at the head tube.
2. Install the rear brake cable starting
the head tube.
For the derailleur and brake housing,
measure a sucient length of housing
to be able to turn the handlebar both
ways correctly.
2
1
A : barrel adjuster
B : metal cap
C : plastic cap
B
B
C
C
C
C
C
speed adjustment : C+A+C

8
Rear brake cable housing
Remove the cable stopper (4) near the seat collar.
Font section: Mesure the necessary cable housing to ensure a proper
rotation of the handlebar. Insert the cable trough the shifter, then
insert the cable and the housing with a ferrule in the head tube.
Rear section: With a magnet, get the rear brake cable out of the frame,
and pass it trough the rear cable stopper. Measure the rear housing
correctly to avoid interference with the rider’s left leg. Fix the cable to
the brake according to the brake manufacturer assembly guide.
4
GALLIUM CS 281A / 281B: 5. Cables & housing installation

9
Front and rear derailleur: Pass
the two cables inside the
frame starting from the top
tube until they come out under
the bottom bracket.
Pass both cables into the cable
guide (19). Make sure the
5mm screw is set to 1.5 Nm.
For a Di2 conguration, use
the bottom bracket dedicated
cover for electric shifting (18).
It’s better to install the cables
before installing the bottom
bracket and crank. 19
18
GALLIUM CS 281A / 281B: 5. Cables & housing installation

10
GALLIUM CS 281A / 281B: 6. Electronic drive-train specication
The Di2 cable routing can be achieved easily using this
simple trick: use a brake cable and a metal cable end to x
the Di2 cable. For more information about Di2 cable length
refer to Appendix (p.19) and for more information about Di2
system installation, go to: http://si.shimano.com.

11
Use the proper grommet
on the headtube to x the
cable correctly (depending
if you use a mechanical or
electronic drive-train).
225
21
5
GALLIUM CS 281A / 281B: 6. Electronic drive-train specication

12
Use the proper grommet / cable stopper for the rear
derailleur (depending if you use mechanical or electronic
drive-train).
In a Di2 conguration, remove the cable stopper (3) and
use the Di2 grommet (6) instead, but leave the 2 scews to
avoid empty holes on the frame.
6
3
GALLIUM CS 281A / 281B: 6. Electronic drive-train specication

13
23
12
In a mechanical conguration, use the provided cable guide pipe (12)
for the front derailleur. For an electronic drive-train conguration,
remove the cable guide pipe and use the proper grommet (23) to x
the cable correctly.
GALLIUM CS 281A / 281B: 6. Electronic drive-train specication

14
The Di2 battery is hidden in the
seatpost; use the Di2 battery holder to
x the battery correctly. Apply a slight
amount of grease on both parts.
24
GREASE
GALLIUM CS 281A / 281B: 6. Electronic drive-train specication

GALLIUM CS 281A / 281B: 7. Saddle adjustment
15
Install the saddle on the rocker (8.4.1)
and tighten the rail clamp (8.4.2) using
the screw (8.3)
Adjust the angle, the oset of the
saddle and tighten the bolt (8.1).
GREASE
8
8.4.1
8.3
8.1
8.6
GREASE
GREASE
8.4.2
9,5Nm
8.2

GALLIUM CS 281A / 281B: 8. Derailleur hanger adjustment
The front derailleur hanger can
be adjusted according to the front
derailleur angle to get an equal curve
between the derailleur and the big
chain ring. Once at the right angle, use
blue 242 Loctite and screw in at 6Nm.
17
LOCTITE
LOCTITE
10

GALLIUM CS 281A / 281B: 9. Appendix 1
18
Di2 Cable Length*
Size 250mm 350mm 600mm 950mm 1000mm
XXS 1x 2x 1x 2x -
XS 1x 2x 1x 2x -
S 1x 2x 1x 2x -
M 1x 2x 1x 2x -
L 1x 2x 1x 1x 1x
XL 1x 2x 1x 1x 1x
XS 1x - 1x 2x -
S 1x - 1x 2x -
M 1x - 1x 2x -
L 1x - 1x 2x -
XL 1x - 1x 2x -
Road
Triathlon/TT
* For internal routing

GALLIUM CS 281A / 281B: 10. Min/Max Seat Post Insertion
Refer to the tables below for details on Saddle Height and SeatPost insertion limits.
i. The correct frame size must be determined according to the saddle height limits.
A. Minimum Saddle Height
D. Maximum Saddle Height
ii. Depending on the size of the frame and the desired saddle height, the SeatPost might
need to be cut.
B. Maximal insertion depth in the Frame’s SeatTube.
C. Required SeatPost cut length to be able to adjust the Saddle Height at the
Minimum position.
- Adjust the SeatPost cut length in accordance with your desired Saddle
Height.
Required minimum SeatPost Cut length = C - (“desired Saddle Height” - A)
- Example: -For a desired Saddle Height of 550mm on a XXS-Gallium CS
Frame
- The required minimum SeatPost Cut length is: 45 - (550-523) = 18mm
E. Minimal insertion depth in the Frame’s SeatTube.
E
D
B
A
C
Saddle Height Limits Gallium CS
Size Saddle
H Min
ST Max
Insert
SP
Cut
Saddle
H Max
SP Min
Insert
mm mm mm mm mm
A B C D E
XX-Small 523 200 45 688 80
X-Small 558 210 35 723 80
Small 597 250 0 762 80
Medium 635 285 0 800 80
Large 670 320 0 835 80
X-Large 700 350 0 865 80
19