Specialized CRUX - 8 Fork & Stem Assembly

17
8.FORK & STEM ASSEMBLY
B
C
A
HEADSET COVER: 8.5 mm
TOP CAP
44 mm LENGTH
EXPANDER PLUG
STEERER TUBE
MAX COMBINED
HEIGHT: 45 mm
MAX SPACERS:
35 mm
MAX SPACER OVER
STEM: 5mm
EXPANDER PLUG
HEADSET COVER
COMPRESSION
RING
UPPER BEARING
LOWER BEARING
 Install the front end (fork, headset, headset spacers, stem, handlebar,
wheels) on the frame then determine the rider’s fit. Do not install more
than 35 mm of spacers (A) between the stem and the headset cover.
 Trim the steerer tube so the final cut is 3 mm below the top of the stem
(B) (or 3 mm below the top of the spacer (C) if a 5 mm spacer is used).
 Install the steerer tube expander plug into the steerer tube. Using a 6
mm hex bit, torque the plug to 45 in-lbf / 5.1 Nm.
 When installing the headset for the final assembly, grease the bearings
and compression ring.
 Install the headset cover, spacers, and stem, followed by the top cap and
bolt. Using a 4 mm Hex key, torque the bolt to 44 in-lbf / 5.0 Nm.
 Once the bike is fully assembled, adjust the headset using the front
brake to determine if there’s any headset looseness.
 The headset cover measures 8.5 mm thick. The maximum spacer stack
height between the headset cover and the stem is 35 mm, for a total of
42 mm.
 The maximum combined height of the stem’s steerer tube clamp and
any spacers placed above the stem (max 5 mm) must not exceed 45 mm.
Make sure to determine the appropriate rider stem height before
cutting the steerer tube. Ideally, the steerer tube should be cut 3
mm below the top of the stem. Alternatively, one optional 5 mm solid
spacer may be placed above the stem. In that case, the steerer tube
should be cut 3 mm below (C) the 5 mm solid spacer.
WARNING! The stem must be fully supported by the expander
plug. Do not place more than one 5mm solid spacer above the
stem. In addition, the combined height between the stem and
optional 5 mm spacer (from the bottom of the stem to the top
cap) must not exceed 45 mm. This is important if the originally
equipped stem is changed with an aftermarket one. Exceeding 45
mm or placing more than one 5 mm solid spacer above the stem
may cause the stem to crush the steerer tube which may result in
serious injury or death.