Manual Cervelo Multi-speed racing bicycles (page 28 of 40) (English)

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Cervélo Owner’s Manual

G. Tightening of Fasteners

Your Cervélo bicycle is equipped with precision components which

require precise adjustment and care in order to function properly. When-

ever components are changed or adjusted on the bicycle, it is critical for

safety and performance reasons that all fasteners be tightened in

accordance with the listed values below. It is recommended that you

permit your dealer to perform the following adjustments, as they have

the proper tools and experience to ensure it is done correctly. Improper

adjustments can result in safety hazards – ensure you read all applicable

documentation and have the correct tools prior to attempting any

adjustments yourself.

Note that prior to assembling and tightening any bolts, all threads must

be generously greased with a quality, non-lithium type grease. Torque

wrenches with scale appropriate for the particular torque setting are

strongly recommended for tightening all threaded fasteners.

Cervélo strongly recommends the use of carbon assembly

compound/friction paste for all areas of clamping to carbon fiber,

such as the seatpost to frame, the stem to fork, and the handlebar

to stem joints. Benefits to using this paste include reduced

corrosion potential, and a decrease in required clamping force

needed to support a given load. The paste should be evenly spread

on the carbon surface under the clamped area, and the applicable

bolt tightened as per the following recommendations.

WARNING: In case of a disagreement or a conflict

between the following list and any supplier literature

on recommended torque values for original equipment

components, please contact Cervélo Customer Service for

review and clarification of the required torque prior to

installation.

• Water bottle cage bolts – 2 to 3 Nm

• Stem (to handlebar/basebar) – 8 to 12 Nm for aluminum handlebars;

5Nm for carbon handlebars

• Stem (to fork steerer tube) – 4 to 5 Nm

• Bottom bracket cable guide – 1 Nm

• Brake/shift levers – 5 to 8 Nm

• Brake calipers – 8 to 10 Nm

• Brake plate (P2,P3, S5) – 4 Nm

• Rear derailleur hanger bolts – 1 Nm

• Stem top cap – Apply only enough torque to remove all headset play

while ensuring it rotates freely. 1 to 2 Nm is recommended.

• Aerobar extensions (to basebar) - refer to manufacterer’s specifications

• Aerobar extensions (to armrest bolt) - refer to manufacterer’s

specifications

• Saddle (seatpost head bolt):

• Aero Tri/TT seatpost (P2, P3, P5, T4) saddle clamp bolt – 12 Nm;

seatpost head to seatpost rail bolt – 6 to 7 Nm

• Carbon Two Offset seatpost (S5 ) saddle clamp bolt – 12 Nm (Note

that 2 Allen keys are necessary to prevent the bolt from

turning while applying the proper torque; this must be verified

using a torque wrench. Insufficient torque will cause the saddle to

slip, possibly causing premature wear to the clamping mechanism.)

• Carbon Single Offset seatpost (S2, S3) saddle clamp bolt - 12 Nm

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Cervelo Multi-speed racing bicycles Manual

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