Specialized CRUX - Seatpost Clamp

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 Grease the inboard rail clamp contact surfaces (D), then install them in
the seatpost head assembly (F).
 Position the saddle rails on the inboard rail clamps.
 Position the outboard rail clamps (C) over the saddle rails. Use 7x7 mm
clamps for alloy rails or 7x9 mm clamps for carbon rails.
 Insert the female bolt (E) through one of the outboard rail clamps and
key the bolt tab in the outboard rail clamp groove.
 Apply thread-locker to the bolt threads (A) and grease to the bolt head
and washer (B), then place the washer on the male bolt.
 Install the male bolt in the opposing outboard rail clamp, then thread it
into the female bolt.
7.3. SEATPOST CLAMP
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 Make sure the seat collar bolt is facing toward the back of the bike.
 If using Shimano Di2, install the battery in the seatpost using the
grommet assembly (S186800006), then plug the seat tube wire into the
battery.
 Apply carbon assembly compound (fiber paste), then insert the seatpost
into the seat tube.
 Grease the seat collar bolt and spacer, then use a 4 mm Hex key to
torque the bolt to 55 in-lbf / 6.2 Nm.