ARGON18 340A User manual

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NITROGEN DISC 340A/340B: ASSEMBLY GUIDE
Valid for MY2021 Nitrogen Disc 340A/340B
Revision 1.0 - 09.29.2020

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NITROGEN DISC 340A/340B: ASSEMBLY GUIDE
Valid for MY2021 Nitrogen Disc 340A/340B
Revision 1.0 - 09.29.2020

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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. These components must be installed using a calibrated torque
wrench to make sure every bolt is at the right torque setting to prevent damage.
NITROGEN DISC 340A/340B: Table of Contents
My Nitrogen Disc
Date of purchase:
Retailler:
Size:
Serial Number:
1. Tools Needed and First Aid Kit ........................................4
2. Frame Inspection ....................................................5
3. Frameset Parts, SKUs and descriptions ................................6
4.1. Headset Installation ................................................8
4.2. Seat Post Installation ...............................................9
4.3. Seat Post Assembly ...............................................10
4.4. Front Derailleur Adjustement ......................................11
4.5. Rear Derailleur Hanger Adjustment ................................12
4.6. Cable routing for FSA ACR headset - OPTION 1: Thru Steerer ID ......13
4.6. Cable routing for FSA ACR headset - OPTION 2: Thru front opening ..14
4.6. Cable routing for Token Head Set ..................................15
4.7. Electronic (Di2) groupset specication .............................17
5. Min/Max Seat Post insertion .........................................22

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Tools needed for assembly
1: Bearing Cup Press (Park Tool HHP-2)
2: Allen Key Set
3: Grease
4: Utility Pick Set (Park Tool Item #UP-SET)
5: Clean Rags
6: Derailleur Hanger Alignment Gauge (Park Tool Item #DAG-2 or #DAG-2.2)
7: Cables and Housing Cutter
8: Carbon Paste
9: Loctite #242
10: Torque Wrench
First Aid Kit: Essential parts to always have on hand
IN CASE OF EMERGENCY…THIS MIGHT SAVE YOUR RIDE!
1: Spare rear derailleur hanger assembly
2: Seat post collar
1. Tools Needed and First Aid Kit
80802 80832
(Direct mount option if utilized)

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Parts installed on the frame Description Screw Tork Detail
type Nm
Front derailleur hanger Screw (2) 5mm 4Nm Loctite
Rear derailleur hanger Screw 4mm 2Nm Loctite
Bottle cage Screw (4) 5mm 3Nm Grease
Bottom bracket cable guide Screw 5mm 1.5Nm Grease
IMPORTANT:
The following parts are assembled on the frame. When assembling the bike, you will need to adjust these parts according to their torque
specications.
2. Frame Inspection
BEFORE ASSEMBLING YOUR NEW NITROGEN DISC, MAKE SURE THAT YOU HAVE ALL THE FOLLOWING:
1: Frameset parts checklist (see p.6-7)
2: Inspect the frame for cosmetic aspect (scratches, bumps, cracks, paint defect, etc.)
3: For reference, check serial number and write it on p.3
4: All the necessary bolts (refer to Frameset Parts, p.6-7)
5: For optimal shifting performance, use a dropout alignment gauge to make sure that the drive-side dropout is
straight (p.12)

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3. Frameset Parts, SKUs and descriptions
38260
38884
38882
38888
FK.NITD.340A
FK.NITD.340B
SP.NIT_D.286A
80478
80477
Images are for reference only. Proportions are not accurate.
Argon 18 reserves the right to modify/change parts of the frameset at any moment without prior notice.
80832
80812
80551
38885
80802
80813
38757
80811
80804 80805 80985
81299 81300
FSA ACR
Token
OR

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3. Frameset Parts, SKUs and descriptions
No. Name Assembled on A18 SKU# Qty
Parts already assembled
Parts
1 Nitrogen Disc Frame - - 1
2 Nitrogen Disc Fork - FK.NITD.340A 1
FK.NITD.340B
3 Nitrogen Disc Seat Post Assembly - SP.NIT_D.286A 1
10 BB Cover (incl. screw) Frame 38260 1
11 Seat Clamp Base (incl. screw) Frame 80478 1
12 Seat Clamp Wedge (incl. screw) Frame 80477 1
13 Di2 Cable Grommet Frame 38888 1
16 Headset (Token or FSA ACR) Fork Token: 81300 / FSA: 81299 1
20 Internal Di2 Battery Support Seat Post 38757 1 Set
24 Direct Mount Rear Derailleur Hanger Frame 80832 1
25 DT Swiss RWS Thru-axle FRONT 12 x 119mm Fork 80812 1
26 DT Swiss RWS Thru-axle REAR 12 x 161mm with handle Frame 80813 1
28 Oblong Cable Guide Frame 80551 1
32 Foam liner for housing Frame 80811 2
33 LONG GROMMET MECH frame 80985 1
34 Long plug frame 80804 1
35 Long Grommet DI2 frame 80805 1
8 Rear Derailleur Hanger (incl. dropout, screw) Frame 80802 1
6 Front Derailleur Hanger (incl. screws) Frame 38882 1
9 BB Cable Guide (incl. screw) Frame 38885 1
7 Bottle Cage Screws Frame 38884 4
*Except for the frame itself, which is not sold as a spare part, all parts can be ordered by referring to their respective SKU number.

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4.1. Seat Post Installation
1. Apply a drop of blue threadlocker
(medium strength) on the bolt’s thread
2. Apply grease on the seat post clamp
and on the screws as shown
3. Assemble the seat post clamp with
the small screw, allowing the parts to
move freely
4. Place the seat post collar inside the
frame, holding it to prevent it falling
inside the frame
5. Insert the seatpost, on which some
carbon ber assembly paste has been
applied
6. Position the seatpost to the desired
height
7. Tighten the set screw at max. 5.5Nm
IMPORTANT: The Nitrogen’s seat clamp is
not the same as the Tri bikes
GREASE
GREASE
THREADLOCKER
(MEDIUM STRENGTH)
GREASE
CARBON FIBER
ASSEMBLY
COMPOSITE
5.5 Nm
1Nm
11
12

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4.2. Seat Post Assembly
3.8
3.3
3.7
3.4
6Nm
3.10
3.9
3.6
3.5
1. Install the saddle on the rocker (3.4)
and tighten the rail clamp (3.3) up to
6Nm with M5 screw (3.10).
2. Adjust the angle and the oset of the
saddle by hand tightening the thumb
screw (3.8).
3. The rocker (3.4) can be ipped to
change the saddle oset (+ / - 5mm).

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4.3. Headset Installation
GREASE
GREASE
GREASE
GREASE
For FSA ACR assembly, FSA TH-894/CR-1 Compressor Pro must
be purchased separately.
For Token assembly, FSA TH-881 compressor or any equivalent
must be purchased separately
IMPORTANT: No more than 30mm of spacers can be placed between the stem and the top cap. The steerer must be trimmed no more than 5mm above
the stem. The use of more than 5mm of spacers above the stem could void the eciency of the compressor and void the warranty.
FSA ACR headset assemblyToken headset assembly

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4.4. Front Derailleur Adjustement
The front derailleur hanger (6) 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
threadlocker (medium strength) and
screw both screws in at 4Nm.
THREADLOCKER
(MEDIUM STRENGTH)
THREADLOCKER
(MEDIUM STRENGTH)
6

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4.5. Rear Derailleur Hanger Adjustment
1. Select the correct rear derailleur hanger depending on the type of derailleur
that you have.
- Direct mount (24)
- Regular mount (8)
2. Make sure to align the rear derailleur hanger.
3. Use Derailleur Hanger Alignment Gauge like Park Tool Item #DAG-2.
For any assistance, visit Park Tool’s website:
www.parktool.com/product/derailleur-hanger-alignment-gauge-dag-2
24
8

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4.6. Cable routing for FSA ACR headset - OPTION 1: Thru Steerer ID
The rear derailleur cable and rear brake housing must be
routed inside the frame, passing over the BB sleeve/axle.
Use the foam liner over the housings in the DT to avoid
rattling sound while riding.
Red line: brake hoses / Yellow line: derailleur cable/housing
All cables are routed inside
the stem and handle bar

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4.6. Cable routing for FSA ACR headset - OPTION 2: Thru front opening
The rear derailleur cable and rear brake housing must be
routed inside the frame, passing over the BB sleeve/axle.
Use the foam liner over the housings in the DT to avoid
rattling sound while riding.
Red line: brake hoses / Yellow line: derailleur cable/housing
All cables are routed inside
the stem and handle bar
The front brake housing enters
in the fork by the opening in
the steerer

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4.6. Cable routing for Token Head Set
The rear derailleur cable and rear brake housing must be
routed inside the frame, passing over the BB sleeve/axle.
Use the foam liner over the housings in the DT to avoid
rattling sound while riding.
Red line: brake houses / Yellow line: derailleur cable/housing
Use the appropriate
grommet
around housings
The front brake housing enters
in the fork by the opening in
the steerer

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4.6. Mechanical groupset specication
9
10
1.5Nm
5mm
Note:
It’s better to install the cable housing before
installing the bottom bracket and crankset.
Rear derailleur: Pass the cable housing
inside the frame starting at the rear
derailleur hanger until it comes out the top
tube.
Front derailleur: Remove the cable guide (9)
under the bottom bracket. Pass the cable
housing inside the downtube until it comes
out the top tube.
Add a plastic cap at the end of the housing,
pass the rear derailleur cable inside the
housing and x the cable guide under the
bottom bracket with the 5mm screw (1.5
Nm).
For a Di2 conguration, use the bottom
bracket dedicated cover (10) for electric
shifting.
Secure the brake hose with the Oblong
Cable Grommet (28) on the chain stay.

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4.7. Electronic (Di2) groupset specication
Red line: brake housing / Blue line: Di2 cable
For FSA ACR headset and stem
- All cables are routed inside the stem and handle bar
- the front brake hose enters the fork by the opening in the middle of
the steerer
- Make sure to not pinch the Di2 cable
For Token headset
- Di2 cable and brake hoses a routed through the top cap using the
appropriated grommets to seal the holes.
- the front brake hose enters the fork by the opening in the middle of
the steerer
- Make sure to not pinch the Di2 cable

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4.7. Electronic (Di2) groupset specication
The Di2 cable routing can be achieved easily using this simple
trick: use a gear cable and a metal cable end to x the Di2
cable. For more information on Shimano Di2 electronic system
installation, go to: si.shimano.com.

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When using an electronic drive-train, use
the grommet (13) to x the front derailleur
cable.
Use the Long Grommet DI2 (35) to secure
the rear derailleur Di2 cable in the chain
stay hole.
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4.7. Electronic (Di2) groupset specication
35

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The Di2 battery is hidden in the
seatpost; use the Di2 battery holder
(2o) to x the battery correctly. Apply a
slight amount of grease on both parts.
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GREASE
CARBON FIBER
ASSEMBLY
COMPOSITE
4.7. Electronic (Di2) groupset specication