Contemporary bicycle frame designs are incorporating larger diameter headtubes and forks with tapered-steerers to improve the bike's front end stiffness, and as a result handling accuracy. This move has made particular sense for off-road bikes. We evolved the form and function of our legendary NoThreadset to address the variety of tapered steerers and headtubes on the market today.Every Chris King headset is built with our heat-treated bearings, and surgical-grade steel races machined simultaneously to ensure they are perfectly matched. As Chris King bearing tracks age and burnish, they actually get smoother, and all headsets are fully serviceable for years upon years of demanding riding.Our InSet™ 5 is built for riders using a 1.5 tapered fork that needs the legendary precision of a Chris King headset on their bike with a 49mm headtube. Our InSet™ 5 is equipped with our exclusive in-house built bearings and our patented GripLock® system to keep your steering precise and dependable.Features:- Legendary made-in-house bearings- Patented GripLock® retention design for dependable headset adjustment - Responsibly lightweight- Designed specifically for a 49mm straight headtube and a 1-1/8 to 1.5 tapered steerer tube