Shimano Ultegra SM-BBR60

Reliable Performance.

Engineered to match the high standards of the Ultegra and 105 groupsets, the SM-BBR60 is a favorite among mechanics and riders alike. It features a smaller bearing design than previous generations to reduce weight and significantly decrease rotational friction, ensuring every watt of your power goes straight to the road. Designed a threaded standard, it provides a creak-free, easy-to-service interface for your Winspace SLC 5.0 or any classic threaded frame.

Why the SM-BBR60 is a Top Choice:

• Reduced Friction: Advanced small-ball bearing technology cuts rotational drag by roughly 50% compared to older external-bearing models, offering a noticeably smoother pedal stroke.

• Superior Sealing: Shimano’s refined seal construction provides an exceptional barrier against water, mud, and road grit, drastically extending the life of your bearings even in harsh Canadian riding conditions.

• Lightweight Engineering: At approximately 77g, it is significantly lighter than entry-level units, helping you shave grams without sacrificing structural integrity.

• Hollowtech II Compatibility: Specifically designed to work perfectly with all 24mm Shimano Hollowtech II cranksets, providing the stiffest and most reliable power transfer available.

Technical Specs:

• Interface: Shimano Hollowtech II (24mm Spindle)

• Series: Ultegra / 105 Tier

The Alegro Tech Tip: The SM-BBR60 uses a smaller outside diameter than older Shimano bottom brackets. While it offers better clearance and lower weight, you’ll need the TL-FC25 adapter to use your standard 16-notch BB tool. If you're building a new bike from a bare frame, don't forget to grab one!

Reliable. Smooth. Proven. Keep your drivetrain spinning perfectly with the SM-BBR60.