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Fastener Torque Specifi cations
Appendix C
Fastener Torque Specifi cations
Correct tightening torque of threaded fasteners is very important to your safety. Always
tighten fasteners to the correct torque. Bolts that are too tight can stretch and deform.
Bolts that are too loose can move and fatigue. Either mistake can lead to a sudden
failure of the bolt.
Always use a correctly calibrated torque wrench to tighten critical fasteners on your
bike. Carefully follow the torque wrench manufacturer’s instructions on the correct way
to set and use the torque wrench for accurate results.
In case of a confl ict between the instructions in this manual and information provided
by a component manufacturer, consult with your dealer or the manufacturer’s customer
service representative for clarifi cation.
RECOMMENDED TORQUE VALUE
COMPONENT IN–LB NM
Headset, Handlebar, Seat area
Seat fi xing bolt (seat rail binder) 174–347 19.7–39.2
Stem handlebar binder bolts (2) 174–260 19.7–29.4
Stem wedge (binder) bolt – quill type for
threaded headset
174–260 19.7–29.4
Threaded headset locknut 130–150 14.7–16.9
Threadless stem clamp bolts 120–144 13.6–16.3
Crankset, Bottom Bracket, Pedal area
Chainring bolt (aluminum) 44–88 5.0–9.9
Chainring bolt (steel) 70–95 7.9–10.7
Crank bolts 305–391 34.5–44.2
Pedal (into crank) 307–350 34.7–39.5
Derailleur, Shift lever area
Front derailleur cable pinch 44–60 5.0–6.8
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