The mpart elite 1 18 headset is a top of the range headset and comes with a 3 year manufacturing warranty it is has precision cnc alloy cups made from aircraft grade aluminium and a quad sealed precision angular contact bearings coupled with double sealed bearing housing keeps the british climate at bay furthermore utilises flush seal technology further protect the longevity of the bearings but the bearings are fully replaceable with full spares back up available just incase the expand