This top of the range upper headset comes with a 3 year manufacturing warranty. Quad sealed precision angular contact bearings coupled with double sealed bearing housing keeps the British climate at bay. Utilises flush seal technology to further protect the longevity of the bearings Full spares back up available Expanding collar design means once you tighten the headset it stays tightened Designed & tested in the UK for extreme British riding conditions Replacement R411 bearing availble (30x 39x 6.5 45x 45)