CeramicSpeed T47/86 Bottom Bracket

This bottom bracket is specifically designed for frames with a T47 bottom bracket shell that is 86mm wide and 47mm in diameter. Please verify your frame's specifications to ensure compatibility before purchasing.

Yes, this bottom bracket is designed to work with standard 24mm spindle cranksets, which includes the vast majority of Shimano road and mountain bike cranks.

The inboard design keeps the bearings tucked inside the frame shell rather than sitting externally. This provides a cleaner aesthetic and offers better protection against dirt, grit, and moisture, which helps extend the life of the bearings.

The coated version features a 3-micron thick metallic layer applied to the bearing races. This additional layer increases the hardness of the races and provides extra protection against corrosion, resulting in even lower friction and a longer lifespan.

Yes, the system is fully serviceable. You can remove the seals to clean and re-grease the bearings, which helps maintain peak performance over the long term.

The T47 threaded interface is specifically engineered to be more stable and secure than press-fit alternatives. By threading the cups directly into the frame, this system significantly reduces the likelihood of the creaking often associated with press-fit standards.