3
6
GREASE
GREASE
GREASE
GREASE
• Grease contact surfaces between #1, #2 and #3 wedge parts.
• Place #2 between #1 and #3 wedges, with desired angle
etching on #2 pointing upward.
• Loosely thread together three wedge parts.
1. Upper Outer Wedge
2. Inner Wedge
3. Lower Outer Wedge
GREASE
0° WEDGE HARDWARE SETUP NOTE:
With no angles or matching tabs and notches, positioning ori-
entation is not important for the 0° hardware. Follow the same
basic assembly steps as for angled hardware (fig.4 through 5).
2
1
8
• Make sure steerer tube extends above Rubymac
spacer by 38-40mm (including expander plug).
• Place stem, shim and wedge system on steerer
tube, then fit shim tab (1) in spacer notch (2).
• NOTE: Improperly position spacer can result
in uneven loads, which can result in failure.
• Tighten wedge assembly lightly, enough to snug
the stem and align the parts correctly.
• Verify stem height and angle, adjust angle
and/or spacer stack height if necessary.
Steerer tube too
high can prevent
proper adjustment
of headset.
Steerer tube too
low can result in
too little interface
between wedge
assembly and
steerer tube.
38-40mm
Rubymac
Spacer
+
Point to
(+) symbol
-
Point to
(-) symbol
9
Use with
+2° or +4°
Shim, wedge
and spacer
Use with
-2° or -4°
Shim, wedge
and spacer
Use with
0° Shim, wedge
and spacer
0° Top Cap
Washer
2°-4° Top Cap
Washer
2°-4° Top Cap
Washer
• If necessary to cut steerer tube, remove steerer tube plug and cut steerer
tube to 38-40mm above Rubymac Spacer (see fork instruction guide for
additional cutting info). This will leave room for headset adjustment and plug.
•
Reinstall steerer tube plug.
• Install top cap washer and aluminum pre-load bolt.
• If using angled hardware, point top cap washer to +/- symbol on top cap
that matches chosen shim/spacer/wedge angle.
Inside top
of stem
Top of steerer
(including plug)
GREASE
7
Shim lip
•
Install wedge assembly in stem,
Allen Key head and upper
wedge facing up.
NOTE: The wedge assembly
needs to be held in place from
below with fingers while being
installed on the steerer tube.
INSTALLING THE WEDGE HARDWARE
