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EN
45
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 specied torque val-
ues where indicated for compo-
nents. Please read the instructions
provided by the manufacturer, which lists
the correct mounting torques.
Bolted connection Torque
Chainset arm, steel 30 Nm
Chainset arm, alumin-
ium 40 Nm
Pedals 40 Nm
Front wheel nut 25 Nm
Rear wheel nut 40 Nm
Stem expander bolts 8 Nm
Ahead stem clamping
bolts 9 Nm
Bar-ends – Clamping
bolts on the bars 10 Nm
Bolted connection Torque
M8 bolt for seat post
clamp 20 Nm
M6 bolt for seat post
clamp 14 Nm
Seat clamp bolt 20 Nm
Brake blocks 6 Nm
Dynamo attachment 10 Nm
Differences for carbon components:
Bolted connection Torque
Front derailleur bracket
attachment screw
3 Nm*
Shift lever attachment
screw
3 Nm*
Brake lever attachment
screw
3 Nm*
Handlebars - stem
clamping
5 Nm*
Stem - fork tube
clamping
4 Nm*
Bolted connection Thread Torque
Max.
Bolt of detachable
seat post clamp
M 5 4 Nm*
Bolt of detachable
seat post clamp
M 6 5.5 Nm*
Derailleur hanger M 10 x 1 8 Nm*
Bolted connection Thread Torque
Max.
Drinking bottle
holder
M 5 4 Nm*
Bottom bracket BSA according
to manu-
facturer‘s
instruc-
tions*
Brake caliper, disk
brake, Shimano (IS
and PM)
M 6 6 – 8 Nm
Brake caliper, disk
brake, AVID (IS and
PM)
M 6 8 – 10 Nm
Brake caliper, disk
brake, Magura (IS
and PM)
M 6 6 Nm
General torques for
screw joints
In general, the following torques can be used for
bolted connections:
Dimen
sions
Screw quality
8.8 10.9 12.9 Unit
M 4 2.7 3.8 4.6 Nm
M 5 5.5 8.0 9.5 Nm
M 6 9.5 13.0 16.0 Nm
M 8 23.0 32.0 39.0 Nm
M 10 46.0 64.0 77.0 Nm
* Use of carbon assembly paste is recommended
54


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