Zipp Model 100 Front Hub Disassembly
- Remove right and left axle end caps and rubber outer bearing seals. Pry the bearing seals out by inserting a razor knife point under their outer edges and gently lifting up.
- Use a mallet or press to drive the axle out of the hub through the flange with the laser etched ZIPP logo. Support the hub vertically with the etched flange up, leaving room underneath to allow the lower bearing and axle to exit the hub. (Bore a 1" hole through a small piece of wood to make a hub support block.) Cover the upper axle end with a wood or plastic block, then strike the block with the mallet to drive the axle and lower bearing through the hub. The bearing remaining in the upper etched flange can be slipped out of place by hand.
Zipp Model 100 Front Hub Assembly
- Wipe out the bearing recesses in both hub flanges, making sure that the flange with the etched ZIPP logo has its circular wave spring fully seated in its groove in the base of the bearing recess.
- Wipe a bead of thick grease around the mouth of the etched flange bearing recess.
- NOTE: THE SEALS ON THE INNER SURFACE OF BEARINGS FOR ZIPP 145 MOUNTAIN HUBS SHOULD BE REMOVED. USE ALL OTHER BEARINGS FOR ROAD HUBS AS SUPPLIED WITH BEARING SEALS INTACT.
- Insert the new axle (with bearing installed on the one end) into the non-etched flange. Support the hub, then press the bearing fully into place by its outside diameter only. A thin piece of 7/8" outside diameter tubing or a bearing press tool should be used along with a press or mallet.
- Turn the hub over, then place the remaining bearing over the end of the axle protruding from the laser etched hub flange. Push the bearing onto the axle by hand, making sure that the bearing is centered over its flange recess.
- Press both bearings together by their inside diameters only. This can be done by installing the axle end caps and quick release skewer, then fitting dropouts or washers into place outside of the end caps and tightening the skewer until the bearing are fully seated onto the axle. Remove end caps, reinstall rubber outer seals, then reinstall the end caps.
Note: these instructions also apply to Model 104 bearing changes