Now factory discontinued. We have some stock and we have secured more. This headset is typically the best headset available in the fight against shimmy on light tube rando bikes. Miche Threadless Headset 1" Needlebearing. We were stumped for awhile as we looked for a needlbearing headset that would work for threadless - but then we found these. We've found them so far to be helpful in reducing shimmy issues, and are pleased with the way they go together. The needlbearing design really makes a lot of sense (much more surface area then typical designs).