Operation Manual

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18 Recommended Tightening Torques
All bolted connections of the bicycle components have to be tightened carefully and checked regularly to ensure the safe and reliable operation of the bicycle.
This is best done with a torque wrench that disengages at the desired tightening torque or a click-type torque wrench.
Tighten carefully by approaching the prescribed maximum torque in small steps (0.5 Nm increments) whilst constantly checking the proper fit of the compo-
nent. Never exceed the maximum tightening torque indicated by the manufacturer! Where no maximum tightening torque is given start with 2 Nm. Observe the
prescribed limit values. Follow the attached instructions of the component manufacturers.
Some components have the maximum permissible tightening torque printed on them. Use a torque wrench and never exceed the maximum
tightening torque! You will find the prescribed values in the present chapter, directly on the components and/or in the manuals of the component
manufacturers.
Assembly Component Torque Nm
Rear derailleur Fastening bolt 8 - 10
Cable fastening 4 - 6
Pulleys 3 - 4
Front derailleur Front derailleur mount 5 - 7
Cable fastening 5 - 7
Shift lever Fastening bolt 5 - 7
STI brake-shift lever Fastening bolt 5 - 7
Brake lever Fastening bolt 5 - 7
Hubs Freewheel body 35 - 39
Crankset / bottom bracket Fastening bolts of squared bottom brackets 35 - 45
Fastening bolts octalink 35 - 50
Bottom bracket square-head 50 - 70
Bottom bracket Hollowtech 2 / Truvativ GXP 30 - 50
Star-shaped nut Hollowtech 2 bottom bracket 0.4 - 0.7
Allen bolts left crank arm Hollowtech 2 10 - 15
Fastening bolt left crank arm Truvativ 48 - 54
Chainring bolts 8 - 11
Pedals 30 - 40
Assembly Component Torque Nm
Stems M5 bolts 5.5 - 8
M6 bolts 9.3 - 13.5
Stem for threaded forks 15
Saddle clamping M4 bolts 3 - 4
M5 bolts 5.5 - 8
M6 bolts 9.5 - 13.5
V-brakes Fastening bolt on cantilever boss 5 - 7
Fastening brake cable 6 - 8
Brake shoes 5 - 7
Clamping of swing arm bearing 5 - 6
Damper bolts 8
Drop-outs Standard 7 - 11
M3 Allen bolts 2 - 3
Bolts, in general (e.g. pannier rack
mounting, bottle cage, etc.) including
carbon frames
M4 2.7
M5 5.5
M6 9.5
M8 23
M10 46
Wheel Wheel nuts (front wheel) 20 - 25
Wheel nuts (rear wheel) 25 - 30
Disc Brakes
Component Magura
Torque Nm
Shimano
Torque Nm
Tektro
Torque Nm
Hayes
Torque Nm
Avid
Torque Nm
Brake calliper 6 6 - 8 8 12 8 - 10
Rotor fixing 4 2 - 4 5 5 6
Brake calliper adapter 8 - 10
Brake lever 3 - 4.5
Brake lever, in general 4 - 7