Session 8

With this suspension design, the swingarm is attached to the mainframe and a long rocker linkage (Figure 1).

Fuel suspension system

Figure 1:

Session 8 suspension system

Inspection

After every 10 hours of use inspect the shock mounting bolts and the pivot bolts for tightness. Remove the nut from the bolt or axle, clean the threads thoroughly, and apply a thread-locking compound (Loctite 242 is excellent). Tighten the bolts to the torque specifications:

Once a month check for bearing wear. Place one hand on top of the rear tire, and grasp the seatpost with the other. Try to move the rear wheel from side to side, and the seatpost up and down. If you feel any looseness, take the bicycle to your Trek dealer for service.

Also check the ABP (Active Braking Pivot) pivot bearings (Figure 2). Tighten the nut to the torque specifications or take your bicycle to your dealer for service.

Figure 2:

ABP pivot

Adjustment

To get the most from your new Session 8, the suspension must be set up correctly.

Table 1: session 8 adjustment chart

Fork

Body weight
lbs
Spring
Rebound
Compression
Body weight, kg
< 120

silver

8 clicks in

1 click in

< 50
120-140

yellow

50-63
140-160

red

10 clicks in

2 clicks in

63-73
160-180

12 clicks in

73-82
180-200

blue

14 clicks in

3 clicks in

82-86
200-220

black

16 clicks in

4 clicks in

86-100
220-300
100-136

 

Rear shock

Body weight
lbs
Spring (lb/in)
Boost valve, psi
Rebound
ProPedal
Body weight, kg
Boost valve, atm
< 120
300
150

14 clicks out

0 clicks

< 50
10.3
120-140
350
175

12 clicks out

50-63
12.0
140-160
400

10 clicks out

63-73
160-180
450

8 clicks out

73-82
180-200

4 clicks in

82-86
200-220
500

6 clicks out

5 clicks in

86-100
220-300

550

4 clicks out

6 clicks in

100-136

 

 

Lubrication

No lubrication is required for the shock or the pivot of your Trek rear suspension bicycle. Avoid all lubricants as they may damage the cartridge or composite bearings. For best results and long life, simply wash the shock and pivot area with a solution of soap and water, or just water.

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