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Bolted connections
It is vital that all bolted connections
on the pedelec have the correct
torque in order to ensure that they
are secure. Too much tightening torque may
damage the screw, nut or component. You
must use a torque wrench. You cannot prop-
erly tighten the bolted connections without
this special tool!
Adhere to any specified torque val-
ues where indicated for compo-
nents. Please read the instructions
provided by the manufacturer, which lists
the correct mounting torques.
Bolted connection
Chainset arm, alumin-
ium
Pedals
Front wheel nut
Rear wheel nut
Stem expander bolts
Ahead stem clamping
bolts
M8 bolt for seat post
clamp
Bolted connection
M6 bolt for seat post
clamp
Seat clamp bolt
Bolted connection
Brake caliper, disk
brake, Shimano (IS
and PM)
Brake caliper, disk
brake, AVID (IS and
PM)
Brake caliper, disk
brake, Magura (IS
and PM)
Differences for carbon components:
Torque
40 Nm
Bolted connection
Front derailleur bracket
40 Nm
attachment screw
25 Nm
Shift lever attachment
screw
40 Nm
Brake lever attachment
8 Nm
screw
9 Nm
Handlebars - stem
clamping
20 Nm
Stem - fork tube
clamping
Bolted connection
Torque
14 Nm
Bolt of detachable
seat post clamp
20 Nm
Bolt of detachable
seat post clamp
Torque
Derailleur hanger
Thread
Max.
Drinking bottle
M 6
6 – 8 Nm
holder
Bottom bracket
M 6
8 – 10 Nm
M 6
6 Nm
* Use of carbon assembly paste is recommended
General torques for screw joints
Bolted connections for which no torque values
Torque
are specified must be tightened using the values
in the following table. These torque values do
3 Nm *
NOT apply to carbon components.
Dimen
3 Nm *
sions
M 4
3 Nm *
M 5
5 Nm *
M 6
M 8
4 Nm *
M 10
Torque
Thread
Max.
M 5
4 Nm*
M 6
5.5 Nm*
M 10 x 1
8 Nm*
M 5
4 Nm*
BSA
according
to manu-
facturer's
instruc-
tions*
Screw quality
Unit
8.8
10.9
12.9
2.7
3.8
4.6
5.5
8.0
9.5
9.5
13.0
16.0
23.0
32.0
39.0
46.0
64.0
77.0
Nm
Nm
Nm
Nm
Nm
39
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