This top of the range headset comes with a 3 year manufacturing warrantyQuad sealed precision angular contact bearings coupled with double sealed bearing housing, keeps the British climate at bayUtilises flush seal technology to further protect the longevity of the bearingsFully replaceable bearings and full spares back up availableExpanding collar design means once you tighten the headset, it stays tightenedAlloy top cap and star-fangled nut includedWeighing in at only 92g (based on a 1 1/8\" threadless headset with steel crown)Designed and tested in the UK for extreme British riding conditions