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si compression assembly
the cylindrical shape of the toP CaP fits snugly within the carbon steering tube inside diameter
(i.D.), supporting the steerer from the clamping force of the stem. it must fit snugly inside the
i.D. of the steerer.
How to install the assembly
1. assemble the fork, headset, spacers, and stem. make sure that the stem bolts are loose.
2. set up the compression assembly. “reaDy to insert” above. the length should be about
48mm as shown above. you can do this by unthreading the top cap from the expander and
then threading it back on about 6-7 turns. the expanding parts should not be expanded.
3. insert the si compression assembly into the fork steerer. it should slide in snugly; the toP
CaP closely fitting the steerer inside diameter.
4. insert a 5mm allen key through the access hole in the toP CaP and into the eXPanDer Bolt.
tighten the expander by turning clockwise to 6.8nm, 5 ftlbs.
5. to set bearing preload, insert a 6mm allen key into the hex shape in the toP CaP iteself.
turn the entire toP CaP clockwise to increase preload. turn counter-clockwise to decrease
preload.
6. When the headset preload is correct, align handlebar and tighten the stem fork clamp bolts
to the torque specified for the stem. Consult the stem since torque values are often marked
on the stem, or consult the manufacturer’s instructions.
WARNINGS
USE ONLY ORIGINAL EQUIPMENT CANNONDALE SI COMPRESSION ASSEMBLY.
Do not
replace it with a star nut or use any other compression or expanding wedge assembly.
DO NOT INSTALL HEADSET SPACERS ON TOP OF THE STEM.
installing spacers above the
stem will raise the toP CaP inside the steerer removing necessary support for the steerer
tube wall. When stem bolts are tightened. the steerer tube can be damaged.
PLACE HEADSET SPACERS ONLY BETWEEN THE HEADTUBE AND THE BOTTOM OF THE
STEM.
YOU CAN BE SEVERELY INJURED, PARALYZED OR KILLED IF YOUR IGNORE THESE
WARNINGS.
