GripLock™ Assembly
The GripLock™ is shipped pre-assembled. If it has been disassembled, then assemble together as shown
in Figure 1. Follow the procedure below.
1. Place thin bearing ring O-ring into outer groove of bearing ring.
2. Place split ring into bearing ring.
3. Snap the bearing ring and split ring into the GripLock™ cap.
4. Feed cap O-ring into the groove created by the assembled parts.
GripLock™ Installation, Final Assembly and Adjustment
1. Remove all sharp edges from inside and outside edges of the cut steerer tube with a le or sand-
paper to avoid shearing the cap O-ring during installation.
2. Apply thin layer of grease onto cap O-ring.
3. Insert fork into frame.
4. Place assembled GripLock™ onto steerer tube. In most cases, the assembly will easily slide onto
steerer. If cap O-ring hangs up on the top edge of the steerer tube, take care not to shear the O-ring.
Gently push the cap O-ring to the side and push the GripLock™ assembly onto the steerer using
steady downward pressure and a slight twisting or rocking motion.
*If you have a carbon steerer tube with expansion plug, loosen the plug prior to bearing
cap installation.
5. Note: If GripLock™ assembly comes apart during installation, go back to “GripLock™ Assembly”
section and then repeat the installation steps.
6. Slide scuff washer, then any spacers and stem on to steerer tube. Thread stem cap screw through
stem cap and into star nut. Tighten to 1.92nm (17 in.lbs.) of torque using 5mm hex wrench. Rotating
the fork in alternating directions while tightening the stem cap will help to optimally seat the bearings.
7. Adjust alignment of stem and then secure stem according to the manufacturer’s specications.
8. Check headset for proper adjustment. When properly adjusted, the fork will rotate smoothly without
play or restriction. Some settling may occur after a few rides; re-adjust as necessary.
New seals will produce some resistance in rotation for the rst 50-100 hours of use. Avoid confusing this
with rubbing or binding that may result from improper installation, poorly cut spacers, or stems that are
not properly faced. We recommend using Chris King Spacers.
Note: It is important to use the King bearing cap and GripLock™ assembly supplied with
the DropSet™ bearings.
Maintenance
Chris King bearings are engineered to provide high performance over a long lifespan – improving over
time. As such, our headsets are designed to be fully serviceable. Occasional adjustment, cleaning, and
re-greasing are all that is required to maintain optimal performance. Riding conditions will dictate how
often service is needed. In wet conditions service may be necessary as often as every 6 months; in dry
conditions, up to every 5 years
To service the headset optimally the bearings will need to be removed from the frame.
GripLock™ Removal
1. Remove stem cap, stem and spacers from steerer tube. Release GripLock™ “lock” by tapping
side of steerer tube with palm of hand or rubber mallet. Do not hit steerer tube from top, as this may
damage the headset bearings.
Servicing the Bearings (Picture tutorial available at chrisking.com)
1. Remove the bearings from the frame.
*Do not attempt to remove the inner, white seal of the headset bearing. This may result
in damage of the seal.
2. Carefully, using a small screwdriver, pick, or penknife, remove the snap ring by gently prying 1.5cm
clockwise from the split in the snap ring. Follow the ring around with the tool until the snap ring is
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