ANCORA
PREMIUM EXPANSION PLUG
FOR CARBON STEERER TUBES
355 Cane Creek Rd, Fletcher NC USA 28732
canecreek.com | 828-641-9560
Installation Instructions
!IMPORTANT SAFETY INFORMATION. PLEASE READ CAREFULLY!
Compression Plug Install -
COMPRESSION BOLT
1. Disassemble preload assembly
2. Apply grease to the Lower and Upper Wedge,
48mm
avoid grease from touching the outer surface
of the Knurled Sleeve.
UPPER WEDGE
KNURLED SLEEVE
LOWER WEDGE
3. Reassemble the preload assembly and tighten
the Compression Bolt until the assembly has
a light press and fits into the steerer tube.
22.5mm
Min Steerer ID - 22.75mm
Max Steerer ID - 24.6mm
4. Tighten the 6mm Compression Bolt clockwise
to 6Nm. Compression bolt must be tightened
to 6Nm to be compatible with fork.
Top Cap
5. Preload your headset topcap bolt to a max of 3Nm.
5mm spacer
Steerer 2mm above stem
Fork and Stem Install -
1. Install headset per headset instructions.
If headset is already installed install fork back
into frame. DO NOT grease the fork steerer tube.
2. Unless the desired stem height is already
determined, it is recommended that the initial
installation of the fork be done with the maximum
allowed stack height (40mm) to allow the greatest
range of adjustability. Spacers can be placed above
or below the stem to adjust your position. Once a
more precise stem height is determined, a second
cut can be made to eliminate any spacers that may
have been placed above the stem to achieve the
desired position.
5mm
MAX
40mm
MAX
3. Carbon steerer tubes should extend completely
through the stem for proper clamping pressure
and safety. It is recommended to have a minimum
of 2mm of steerer tube extend above the stem and
use a 5mm headset spacer between the stem and
headset top cap. More than a 5mm spacer above
the stem is not recommended.
Warning! Do not permanently place more than
a 5mm spacer above the stem and no more
than 40mm of spacers below the stem. Placing
too many spacers above or below the stem
defeats the purpose of the expander plug’s
ability to support the steerer tube and stem.
4. Install stem and align with wheel. Tighten stem
clamp bolts to manufactures recommended torque.