Trek Slash Alloy and Carbon - Gen 6 User manual

Slash Alloy and Carbon — Gen 6
SERVICE MANUAL

Slash Alloy and Carbon — Gen 6
1
Contents
Headset Idler
pulley
Safety Adjustable headset Idler pulley
Linkage
Active Braking Pivot
with Universal
Derailleur Hanger
Active Braking Pivot
with SRAM Trans-
mission Derailleur
Main pivot and
chainstay
Rocker pivot and
seatstay
Rear shock
hardware
Routing
Carbon routing with
mechanical shift
Carbon routing with
AXS shift
Alloy routing with
mechanical shift
Alloy routing with
AXS shift
Guards
Rear fender
Storage
Carbon frame and
chain guards
Alloy frame and
chain guards
Rear fender Downtube storage
Change:
rear wheel
headset angle
progression 27.5"29"
Change to a 29”
rear wheel
Adjust the
headset angle
Adjust the
progression
Torque
order
Specs
Torque order Specications
Copyright 2023 Trek Bicycle Corporation All Rights Reserved

Slash Alloy and Carbon — Gen 6
2
Safety
WARNING
Properly tighten hardware
Always tighten hardware to the specied torque.
Over-tightening hardware could deform or break the
hardware or components. Under-tightening hardware
could cause hardware or components to become loose.
Either situation could damage the bicycle and result in
injury to the rider.
WARNING
Reapply threadlocker
All reused-fasteners with pre-applied threadlocker must
be cleaned with isopropyl alcohol and have new thread-
locker applied before re-assembly. If threadlocker is not
applied, the fasteners may loosen which could damage
the bicycle and result in injury to the rider.
Scope
This manual contains parts diagrams, specications (such
as grease and torque values), instructions, and helpful
tips. It does not contain instructions for all components
(such as brake calipers). Refer to the original manufactur-
er for more information.
Legend
Apply grease
Do not apply grease
Apply threadlocker
Nm Torque
Zip tie
Additional resources
• Bicycle Owner’s Manual: trekbikes.com/manuals
• Trek’s YouTube channel: youtube.com/trekbikes

Slash Alloy and Carbon — Gen 6
3
Adjustable headset
See Adjust the headset angle on page 20.
1
2
3
4
5
6
7
1Upper bearing cover — W5275173
— W5285212
2Compression ring — W532842
3Upper bearing — W531676
4Upper cup, 0° angle — 5304949
5Press-t lower cup, 0° angle — 5304949
6Lower bearing — W532843
7Crown race — W532844

Slash Alloy and Carbon — Gen 6
4
Idler pulley
NOTE: For 55mm chainlines only.
1 – 1.5Nm
1
2
7
6
3
8Nm
5
4
Bearing and
retaining clip
face out.
1Fastener, — W5271172
2Idler guard — W5307894
3Fastener, stainless steel, M6x25mm — W5270150
4Idler pulley concave washer — W5305535
5Idler pulley assembly — W5305296
6Idler pulley spacer — W5305382
7Idler pulley post — W5305204
Tip: Remove the idler pulley
Remove the chain, then:
1
2
Insert a plastic pry bar behind the idler pulley post to push
the idler pulley off the chainstay.

Slash Alloy and Carbon — Gen 6
5
Active Braking Pivot with Universal Derailleur Hanger
Important: The lower chainguard (page 15 and page 16)
must be fully installed before adjusting the derailleur.
10Nm
1
45
2
3
7
9
25Nm
8
5
Alloy frame
12
3
45
6
7
589
10Nm
25Nm
Carbon frame
1Thru axle, M12x167.35mm — W583469
2Non-driveside ABP bolt
— W5251141
— W5272776
3Non-driveside ABP dropout nut
— W5269707
4Retaining ring — W5251279
5Bearings, 20x30x7
— W5256340
6Spacers, 25x20x3 — W583422
7Derailleur hanger
NOTICE: Do not apply grease.
— W5271425
8Washer, 30mm
NOTICE: The washer is frame-spe-
cic. Install only the washer size
specied.
9Bolt
NOTICE: Do not apply grease. Do
not overtighten. Overtightening
may damage the hanger.

Slash Alloy and Carbon — Gen 6
6
Active Braking Pivot with SRAM Transmission Derailleur
6
Carbon frame
1
10Nm
2
3
45
5
Important: The lower chainguard (page 15) must be fully
installed before adjusting the derailleur.
78
9
1Thru axle, M12x167.35mm — W583469
2Non-driveside ABP bolt — W5251141
— W5272776
3Non-driveside ABP dropout nut — W5269707
4Retaining ring — W5251279
5Bearings, 20x30x7 — W5256340
6Spacers, 25x20x3 — W583422
7Bushing
— Refer to information on sram.com.
8Mounting bolt
9SRAM Transmission Derailleur

Slash Alloy and Carbon — Gen 6
7
Main pivot and chainstay
V
6
1
Install driveside
bearings rst
3
5
4
2
6
4
8Nm
7
See “Torque order” on page 10.
1Chainstay*
Carbon — 46192
Alloy — 46193
*Paint matched part. Sea trekbikes.com to nd the color-matched part for your bike.
2Fastener, M6x25mm — W5270150
3Concave washer — W5270027
4Thru axle, 12mmx78mm — W5305383
5Spacers, 4mm width — W5305806
6Bearings, 17x30x7 — 5290435
7Flanged main pivot axle — W5305807

Slash Alloy and Carbon — Gen 6
8
Rocker pivot and seatstay
1
2
Install driveside bearing rst
11
6
3
4
3
3
4
3
2
5
6
10
7
8
9
9
8
5
7
8Nm
8Nm
17Nm
17Nm
5Nm
See “Torque order” on page 10.
1Seatstay*
Carbon — 46194
Alloy — 46195
2Fasteners, M10x21 — W600629
3Hat-style washers — W5257190
4Bearings, 12x24x6 — 5290440
5Fasteners, M6x25 — W5270150
6Concave washers — W5270027
7Two-piece rocker pivot*
Carbon — 46196
Alloy — 46197
8Spacers, 4mm wide — W5305806
9Bearings, 17x30x7 — 5290435
10 Rocker link axle — W5305805
11 Fasteners, M5x18mm — W5256244
*Paint matched part. See trekbikes.com to nd the
color-matched part for your bike.

Slash Alloy and Carbon — Gen 6
9
Rear shock hardware
1
3 9
2
2
4
5
6
7
8Nm
8Nm
8
10Nm
See Change to a 29” rear wheel on page 19 for
instructions on changing the lower shock mounts
to switch to a 29" wheel on M-XL frames.
See “Torque order” on
page 10.
1Upper shock mount axle, M6x67 — W5305189
Shock Dimensions
Eye-to Eye-length: 230mm
Stroke length: 65mm
Shock air can mount/bolt: 54mmx10mm
Shock shaft mount/bolt: 20mmx8mm
For a list of compatible shocks, refer to the FAQ
on the Gen 6 Slash product pages on
trekbikes.com.
2Bearings, 12x24x6 — 5290440
3Hat-style washers — W5257189
4Concave washer — W5305190
5Fastener, M6x25 — W5270150
6Lower shock mounts for use with:
Size S, 27.5" rear wheel
or
Size M – XL, 29" after-market rear wheel
— 5317350
Size M – XL, 27.5" rear wheel — 5317349
7Progression mino link — 5303333
Includes a More/Less nut that is not used on the Slash.
8Fastener, M8x40mm — W5305730
9Fasteners, M6x40mm — W5305731

Slash Alloy and Carbon — Gen 6
10
Torque order
Important: Remove the bike from the bike stand and set it
on the ground before torquing all fasteners to spec. 1
2
3
4
6
8Nm
8Nm
17Nm
8Nm
25Nm
5
8Nm
17Nm
5Nm
5Nm

Slash Alloy and Carbon — Gen 6
11
Carbon routing with mechanical shi
Molded-in cable tunnels
4
1
2
3
1.5Nm
7
5
1.5Nm
6
8
6
8
1Seatpost dropper cable housing
2Rear brake hose
3Shift cable housing
4Frame plug, 7mm — W5309145
5Bolt-on cable guide, single — W311727*
6Fastener, M5x8mm — W596823
7Bolt-on cable guide, double — W311726*
8Fastener, M5x10mm — W5252771
*NOTICE: The fastener included with the cable guide is too long. Do not use it. Use the fastener shown above.

Slash Alloy and Carbon — Gen 6
12
Carbon routing with AXS shi
10 34
5
Molded-in cable tunnels
1
2
3
4
5
5
10
1.5Nm
6
1.5Nm
8
7
9
7
9
1Seatpost dropper cable housing
2Rear brake hose
3Frame plug, 7mm — W5309145
4Frame plug, 6mm — W5309144
5Cable exit plug, 5.5mm — W600209
6Bolt-on cable guide, single — W311727*
7Fastener, M5x8mm — W596823
8Bolt-on cable guide, double — W311726*
9Fastener, M5x10mm — W5252771
10 Frame plug — W5309146
*NOTICE: The fastener included with the cable guide is too
long. Do not use it. Use the fastener shown above.

Slash Alloy and Carbon — Gen 6
13
Alloy routing with mechanical shi
6
8
Molded-in cable tunnels
1
23
4
6
1.5Nm
8
1.5Nm
7
5
1Seatpost dropper cable housing
2Rear brake hose
3Shift cable housing
4Frame plug — W5275264
5Bolt-on cable guide, single — W311727*
6Fastener, M5x8mm — W596823
7Bolt-on cable guide, double — W311726*
8Fastener, M5x10mm — W5252771
*NOTICE: The fastener included with the cable guide is too long. Do not use it. Use the fastener shown above.

Slash Alloy and Carbon — Gen 6
14
Alloy routing with AXS shi
Molded-in cable tunnels
1
2
10
1.5Nm
3
4
5
5
6
1.5Nm
8
10 3
54
7
9
7
9
1Seatpost dropper cable housing
2Rear brake hose
3Frame plug, 6mm — W5309144
4Frame plug — W5275264
5Frame plug, 5.5mm — W600209
6Bolt-on cable guides, single — W311727*
7Fastener, M5x8mm — W596823
8Bolt-on cable guide, double — W311726*
9Fastener, M5x10mm — W5252771
10 Frame plug — W5309146
*NOTICE: The fastener included with the cable guide is too
long. Do not use it. Use the fastener shown above.

Slash Alloy and Carbon — Gen 6
15
Carbon frame and chain guards
M5x8
8
M4x6
5
3
5
5
0.5Nm
0.5Nm
6
5
0.5Nm
7
5
0.5Nm
2
9
1
4
8
2Nm
Adhesive guard 1
Use isopropyl alcohol to clean the frame sur-
face where the guard attaches. Wait for the
alcohol to dry before applying the guard.
NOTICE: Do not clean the entire frame with
isopropyl alcohol. Isopropyl alcohol could
damage the paint.
Bonded strike guards 23
1. To improve adhesion, use sandpaper to roughen the backside of
the guards and/or remove remnants of the old guard from the
areas of the frame where epoxy will be applied.
2. Attach the guards with a two-part epoxy.
3. Allow the guards and epoxy to cure for 24 hours.
1Adhesive guard — W326986
2Rotor guard — W580881
3Seatstay guard — W5255862
4Chainstay guard — W5306300
5Fastener, M4x6mm — W575056
6Shuttle guard — W5306877
7Downtube guard
S/M — W5306634
ML/L — W5307353
XL — W5307890
8Fasteners, M5x8mm — W596823
9MRP MXg Chainguard — W5311741
Important: Fully install before adjusting the
derailleur.

Slash Alloy and Carbon — Gen 6
16
Alloy frame and chain guards
M5x8
6
M4x6
3
Adhesive guard 1
Use isopropyl alcohol to clean the frame
surface where the guard attaches. Wait for the
alcohol to dry before applying the guard.
NOTICE: Do not clean the entire frame with
isopropyl alcohol. Isopropyl alcohol could
damage the paint.
0.5Nm
3
3
1
2
4
3
0.5Nm
5
3
0.5Nm
6
2Nm
7
1Adhesive guard — W326986
2Chainstay guard — W5306300
3Fastener, M4x6mm — W575056
4Shuttle guard — W5306877
5Downtube guard
S/ML — W5307891
L/XL — W5307893
6Fasteners, M5x8mm — W596823
7MRP MXg Chainguard — W5311741
Important: Fully install before adjusting the
derailleur.

Slash Alloy and Carbon — Gen 6
17
Rear fender
Important: The rear fender is only compatible with a 27.5" wheel.
1 – 1.5 Nm
1
1Fender and fasteners (M4x10mm) — W5308789

Slash Alloy and Carbon — Gen 6
18
Downtube storage
1
Torque all fasteners to 1.5Nm
2
1Downtube storage assembly with matte black door — W5297657
2Paint-matched storage door only — 46198 and 46199.
See both part numbers on trekbikes.com to see all color options.
Important: Also order 1 to receive the fasteners, lever and base.

Slash Alloy and Carbon — Gen 6
19
Change to a 29"rear wheel
Size M-XL: To change to a 29" rear wheel, remove the 27.5" lower shock mounts and replace them with the 29" lower shock
mounts.
Size S: Is not compatible with a 29" rear wheel. Small frames use the same lower shock mounts as a 29" rear wheel, but 29"
wheels do not t on the small frames.
Lower shock mounts for 29"rear wheel
driveside
— 5317350
non-driveside
1
Remove the rear wheel. This will make it easier to manip-
ulate the swingarm when aligning the shock and lower
mounts in step 3.
Remove the rear fender. It’s not compatible with a 29"
wheel.
2
Place a clean shop rag between the shock and the frame
to protect the frame.
3
27.5" 29"
Remove the 27.5" lower shock bolt, lower shock mounts
and the mino link. Re-insert the mino link into the 29" low-
er shock mount. Install the 29” lower shock mounts and
shock bolt. Loosely tighten, but do not torque the bolts.
4
Important: Before torquing the shock mount bolts:
• Re-install the rear wheel
• Remove the bike from the stand and set the wheels on
the ground. The weight of the bike will help align the
shock and lower shock mounts for proper torque.
1
2
5
3
7
.
8
8
.
0
8
.
2
7
.
8
8
.
0
8
.
2
10Nm
8Nm
8Nm
Torque the shock bolt and then the lower shock mounts.