Shimano Ultegra Press-Fit Bottom Bracket | SM-BB71-41B

Shimano Ultegra Press-Fit Bottom Bracket

SM-BB71-41B – HOLLOWTECH II press-fit bottom bracket for 86.5mm shells

🔥 Smooth, sealed and built to last 🔥

🚲 Press-fit design for 86.5mm wide shells (BB86)

🚲 HOLLOWTECH II outboard-bearing design

🚲 Reliable Shimano bearings and seals for a long service life

🚲 Small ball bearings for smooth rotation

🚲 Lightweight at just 69g

More Information

With reliable Shimano bearings and seals, the Ultegra bottom bracket has a long service life. The HOLLOWTECH II design places the bearings outside the frame shell and pairs them with a hollow crank axle, giving a stiff, light and stable pedalling platform.

This is the press-fit version, for frames with an 86.5mm wide shell.

Compatibility

For press-fit bottom bracket shells, 86.5mm wide (BB86 standard, 41mm bore), used with Shimano HOLLOWTECH II road cranksets. Not for threaded shells – for those, see our Ultegra BSA threaded bottom bracket (SM-BBR60).

Specifications

✔ Model: SM-BB71-41B

✔ Series: 105 R7000

✔ Standard: Press-fit

✔ Shell Width: 86.5mm

✔ Crank Interface: HOLLOWTECH II

✔ Bearings: Small ball bearings

✔ Weight: 69g

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