Ritchey WCS Logic HeadsetNestled in lightweight, precision machined aluminum cups are set of sealed bearings made to such exacting tolerances that they are backed by Ritchey with a lifetime guarantee.
I have a 6 year old version of this HS on my road bike and it's been flawless from day one. Smooth, lightweight, never had issues. I have a 2013 version on my latest MTB rig and the Great Divide trip I took last year. Held up to the beating of that ride and never needed adjustment from the day of installation. I highly recommend this headset
Replaced my Chris King with the Ritchey WCS and I have no complaints. The product is smooth and has taken a season long beating with no issue. I highly recommend this product