CeramicSpeed BB30 Campagnolo Road Hub Bearings

Campagnolo CeramicSpeed BB30 hub bearings are the standard that changed the game. The 42mm inner diameter shell, either 68 or 73mm wide opened the floodgates on bottom bracket designs. The CeramicSpeed BB30 Over-Torque Bottom Bracket mates a BB30 shell to a Campagnolo Over-Torque crank. The CeramicSpeed Bearings are the essence of the kit. There are two choices. The first choice is our low drag, long life standard bearing, with hardened-steel races and our super round CeramicSpeed Balls. Second is our Coated Bearing, which uses those same balls installed on coated, hardened-steel races for longer life and less bearing drag.The Over-Torque thru-axle spindle is 30mm in diameter. Bottom brackets have several variables, but within that, CeramicSpeed standard bearings typically have frictional drag of 0.3-0.4 watts per set. That's in the range of a 75% drag reduction compared to standard bottom brackets.