Upgrade your Campagnolo or Fulcrum wheelset to Campagnolo's new CULT bearing system. CULT bearing technology increases the extraordinary performance of USB technology another step. The ceramic ball bearings are always the best in existence (silicon nitride), but in this case Campagnolo has gone an extra step compared with the competition by working on the races the ball bearings run in. In collaboration with the German company, Schaffler INA-FAG, Campagnolo has realized ball bearing races made of Cronitect steel; this raises the resistance to corrosion to the maximum level to the point that no grease is necessary for lubrication. These bearing must be lubricated with oil alone. This solution incredibly increases the smoothness of ceramic ball bearings and will delight those for whom racing is a way of life.