23
SAFETY
10 Torques
WARNING
Risk of accident and injury!
Incorrectly tightened screw connections can result in material fatigue and
eventually cause the screw connections to break.
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Do not use your bike if you notice any loose screw connections.
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Screw connections must be properly tightened with a torque spanner and to
the correct torque values.
Observe the relevant torque values to ensure the screw connections are tightened correctly.
A torque spanner with a suitable adjustment range is required for this task.
The correct torque value for a screw connection depends on the material and diameter of
the screw connection, as well as the material and design of the component.
• If you do not have any experience with using torque spanners or if you do not own a
suitable torque spanner, ask your specialist dealer to check your screw connections.
• Torque specifications and markings specifying the insertion depth are indicated on
individual bike components. Always observe these specifications and markings.
10.1
Overview of tightening torques
The following table lists the torque specifications that have been adapted to the individual
parts. Please ask your specialist dealer for any torque specifications that are not listed.
Screw connection
Torque value in Nm
Square crank, M8
Max. 45 Nm
Crank on left hollow axle:
M5
M6
9 - 11 Nm
12 - 14 Nm
Pedals
31 - 34 Nm
Rear axle
Max. 11 Nm
Saddle adjusting screw
Max. 12 Nm
Seat post clamp:
M5
Quick-release clamp
5 Nm
9 Nm
Screw connection
Torque value in Nm
Brake lever on handlebar
According to
manufacturer
Shift lever on the
handlebar
According to
manufacturer
Threadless handlebar
stem: Shaft clamp
Handlebar clamp
5 Nm
5 Nm
