Cervélo S3 DISC Manual De Instrucciones página 41

To secure the rear wheel, install the greased axle,
through the non-drive side dropout, through the wheel
hub, and rotate to thread axle into the Rear Derailleur
Hanger until tight.
Once tightened, close lever to lock.
Perform final tightening on Rear
Derailleur Hanger Fixing Nut using
a 17mm wrench. This action is
unique to initial assembly, and
should not require adjustment
afterwards.
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