The SHIS specification makes the purchase process much easier. This Orbit CE headset had IS42-28.6/IS42-30 (Campy Hiddenset compatible) single seal cartridge bearings. They are an exact fit on my 2010 BMC SLX-01. NOTE: the fork crown race is a solid ring (not a split crown race). Thus, it cannot be installed/removed gently by hand. Instead, following useful advice from online, a 24" piece of 1 1/4" pvc pipe from Home Depot with the endcap (total $5) is all you need. Seat the pipe with endcap on the crown race around the steerer tube, turn the whole thing upside down, and carefully bang it on the floor for a couple minutes to install. Do at your own risk (or go to your LBS and they'll have you out in 30 seconds).
Verified purchase: Yes | Condition: New
Very good. Fan of FSA
Verified purchase: Yes | Condition: New
Smooth, great quality, better price than anywhere else I can find
Verified purchase: Yes | Condition: New
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