Hardly any other component is more hidden but nevertheless important than the Headset. More than 15 years of know-how in bearing technology are directly reflected in our products. The result are high-end headsets with the right spark of glamour and elegance.The combination of stainless steel angular contact ball bearings and sophisticated sealings ensure durability with minimal maintenance and therefore more worry-free time in the saddle. Simple assembly and exchangeability are main features of this type and because of the wide variety available it is very important to measure accurately.Headset bearings for Focus frames with 42mm bearing seat at the top and 46.8mm at the bottom of the head tube. The IS42/IS47 bearing set consists of two stainless steel angular contact ball bearings and a matching compression ring.Key Features• Replacement bearing set for integrated headest (42mm upper, 47mm lower)• Supplied with compatible compression ring