Originally Posted by
BikeWise1
Minor variances in size tolerances meant a slightly small steerer would result in a loose headset. Naturally, people were overtightening them to no avail, so the split ring offers the ability to effectively cope with slightly mis-sized steerers.
Yeah and mine happened to be a good fit. I was aware of CK's former design's potential problems but I hadn't heard they redesigned it with the more conventional split ring.