Assessments - 4, GPA: 4.3
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Remove any burrs or sharp edges using fine grit sandpaper. All edges in contact with the steerer tube should be rounded out to eliminate any stress points. A Burrs and sharp edges can damage the carbon and alloy surfaces of the components. Any deep scratches or gouges in the stem or fork can weaken the components resulting in failure, causing serious personal injury or death. NOTE: Specialized recommends only external slotted clamp style stems. Internal wedge clamp style stems can damage the steerer tube if improperly installed (Fig. 1). 1. The lower bearing race is permanently pre-installed at the factory. Apply a small amount of grease to the lower bearing race surface. Avoid getting grease on the stem interface region of the steerer tube. 2. Install the bearings in the head tube, with a light coat of grease on the bearing surfaces. The bearings are friction fit and can be installed by hand. 3. Place the fork in the frame, followed by the headset compression ring, headset top cap and the desired height of carbon cone and/or headset spacers. NOTE: Do not install more than 40mm (1.5") stack height of headset spacers. Exceeding this limit can compromise the strength of the steerer tube (Fig. 2). NOTE: Clean the stem interface surface of the steerer tube (above the headset spacers) with isopropyl alcohol or a similar type of degreaser before installing the stem. 4. Pre-install the stem (do not apply a high torque without the 48mm Long Expander Plug installed). NOTE: Unless the desired stem height is already determined, it is recommended that the pre-installation of the fork and stem 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 6 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 1. 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). 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. < tr NOTE: It is very important that the steerer tube is cut straight. For best results, use a steerer tube cutting guide tool. 3. 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 at INSTALLING THE FORK 1. Install the 48mm Long Expander Plug (Fig.2). Recommended torque is 100 in-lbf (11.3 N-m). D HI O Q -J Z A 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. 2. Place the fork back into the head tube and clean the stem interface of the steerer tube with isopropyl alcohol. 3. 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. 4. 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. 1. Headset cone spacer 2. Top cap 3. Compression ring 4.1-1/8” bearing 5.1-1/2” bearing 6. Integrated crown race CL CL to LU z CL Fork install steps continued on next page. 7 5. Install the front wheel and adjust the brake to allow the rotor to spin freely. 6. Adjust the headset to eliminate any free play, make sure that the fork rotates freely. Align the stem with the fork. Tighten the stem's upper and lower steerer clamp bolts in an alternating pattern. In...
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