Headset - BBB Cycling
BBB Headset INSTALLATION INSTRUCTIONS Cover Compression ring ACB Bearing Upper Cup Lower Cup 3e. Place the compression ring on the top of the fork steerer and slide it down until it rests against the top bearing. 3f. Place the cover cup on the top of the fork steerer and slide it down until it rests against the compressing ring. ACB Bearing Crown Race 1. Install the headset crown race on the front fork. Make sure that it is seated completely and level on the fork crown. 2. Make sure your frame's head tube is properly faced, then install the upper and lower cups onto the frame's head tube using a headset press. 3a. Assemble the headset (without grease), fork and stem to check the fork's length. 3b. Install the lower cartridge bearing into the lower headset cup, making sure they are seated correctly. No grease. 3c. Place the upper bearings into the upper headset cup. No grease. Make sure the bearings are seated correctly. 3d. Insert the fork's steerer tube onto the frame, with all the bearings in place. 3g. Slide stem into the fork steerer tube. Make sure the top of the stem is 5-7mm higher than the top of the steerer. If the stem is not high enough, install spacers below the stem or cut the steerer to the appropriate length. 4. Disassemble. 5. Using a star-nut setting tool, insert the BBB RoundHead star-nut into the steerer tube of your fork. 6. Re-assemble (Steps 3). Grease the bearing seals inside the cups. 7. Install the top cap by turning the screw into the star-nut. Tighten until the front fork turns smoothly without play or wobble. Tighten until all play is out of the headset. 8. Straighten the stem and tighten the stem clamp screws. Periodically check headset adjustment, especially during the first few rides. The front fork should turn smoothly without binding or wobbling. SPECIAL NOTE: Your BBB TurnAround headset features a specially-designed compression ring, which makes the headset more durable. To disassemble the headset, it may be necessary to pry the compression ring off with a screwdriver.
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