High-quality BB for T47 External Type BB shell of 68mm. Sugino OX series and Shimano hollowtech Ⅱ cranks (DURA-ACE, ULTEGRA, 105) work perfectly with the BB.
Frame standard: T47 External
BB shell width: 68mm
Bearing: Steel (Silver)
An advanced sealing mechanism, including a special lip seal, gives long-term durability in water and dust, ensuring longer service life of the high precision bearing. So, service and maintenance of the bearing are not required.