Shimano Ultegra BBR60

This bottom bracket is designed for frames with an English threaded shell, which is the standard 1.37-inch diameter and 68mm width. If your frame uses a press-fit system or a different threading standard like Italian, this component will not fit.

The BBR60 is specifically designed for Shimano Hollowtech II cranksets. It will work seamlessly with Ultegra, 105, and Dura-Ace cranks that utilize this 24mm spindle interface.

The BBR60 features smaller, lighter bearings compared to previous generations, which helps reduce overall weight and rotational friction. It also uses a specialized tool adapter, so you may need a different installation tool than you used for older Shimano bottom brackets.

Yes, it features a robust sealing system designed to keep dirt and moisture out of the bearings. While it is built primarily for road cycling, these seals provide excellent protection against the elements you might encounter on a typical ride.

Yes, because the BBR60 uses a smaller bearing cup diameter than older models, you will need the specific Shimano TL-FC25 adapter tool to use with your standard bottom bracket wrench. It is a simple addition, but essential for proper installation.