Cutting the fork steerer tube installing the fork – Specialized AFR E100 User Manual

Page 7

FRA

DEU

ESP

NLD

JPN

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.

CUTTING THE FORK STEERER TUBE

Once the initial stem height is

achieved, make a mark on the steerer
tube at the top of the stem. Place the
cutting line 3mm below the mark to
allow for the space needed for the
1mm lip of the expander plug. The
end result is 2mm of space. (Fig. 2).
Wrap the area where you intend to cut

the fork with several layers of masking
tape. This will limit fraying of the
fibers, resulting in a cleaner cut. Once
you’ve wrapped the layers of tape, determine the precise location of the desired cut
with a pen mark on the tape. To avoid fraying the composite fibers, it is recommended
that a carbide grit toothless saw blade be used. A fine tooth (36 teeth) saw blade is
also acceptable. Double check all measurements to make sure the steerer tube will not
be cut too short. It’s easier to measure twice than to buy a new fork.

NOTE: It is very important that the steerer tube is cut straight. For best results, use a steerer
tube cutting guide tool.

Once the steerer tube is cut to the desired length, remove all burrs at the top of the

steerer tube by rounding out the edge with emery paper or a fine grit sand paper.
Only sand the edge, not clamping surface! Wipe off all excess dust.

Be sure not to

breathe carbon dust!
For additional information on carbon fiber preparation, please visit the tech section

www.specialized.com.

INSTALLING THE FORK

Install the 48mm Long Expander Plug (Fig.2). Recommended

torque is 100 in-lbf (11.3 N-m).

The E100/S90/S120 steerer tube requires the use of the RED
(22.5mm O.D.) Specialized 48mm Long Expander Plug (Fig.
2) supplied with the fork. Do not use a star nut, as it can
damage the inside surface of the steerer tube. Damage to
the steerer tube can result in failure, causing serious personal
injury or death.

Place the fork back into the head tube and clean the stem

interface of the steerer tube with isopropyl alcohol.
Place the desired amount of headset spacers to achieve

proper stem height, followed by the stem and the top preload
cap.

NOTE: Do not twist the stem onto the steerer tube. This can result in
damage to the surface, which can render the fork unsafe.

Install the disc brake and brake housing guide on the fork.

Make sure the brake housing routing doesn’t touch the tire
when the fork is fully compressed and that it doesn’t interfere
with the controls on the handlebar when rotated. Do not
overtighten the bolts. Refer to the disc brake manufacturer’s
owner’s manual for recommended torque specifications.

2mm

Steerer

Tube

Headset Upper

Bearing Race

Max Stack

Height:

40mm

48mm Long

Expander Plug

Head Tube

2mm