Aire Velo Bearings range of full ceramic bearings covers only two applications on the bike which are the wheels & bottom brackets.
We recommend our full ceramic bearings for track/velodrome riding, however if you consider yourself competitive and have a bike/wheels set aside for racing then they could work very well for you.
Our full ceramic bearings have ceramic (ZrO2 - Zirconia) inner and outer races along with a PTFE cage, ceramic (ZrO2 – Zirconia) balls and PTFE seals making the bearing a lot lighter, faster and energy efficient. The cage and seals are made in PTFE to maintain the low weight. Full ceramic bearings are considered self-lubricating so they do not come greased, however if you were intending on using them on the roads they would benefit from a light oiling with thin oil.