Shimano Ultegra BB72-41B Bottom Bracket
Best lightweight upgrade for road cyclists seeking smooth, reliable power transfer.
This component provides a reliable, lightweight interface between the crankset and frame, ensuring smooth power transfer. It is an essential upgrade for maintaining drivetrain efficiency and eliminating unwanted noise in press-fit systems.
$40.00
at
Big Sky Cycling
Who it's for
- Performance riders seeking efficient power transfer and low friction
- Weight-conscious cyclists building a competitive road bike
- All-weather commuters needing protection from road grime
Who should skip it
- Cyclists sensitive to drivetrain noise and frame tolerances
- Home mechanics lacking specialized press-fit installation tools
- Riders prioritizing long-term durability over weight savings
Performance breakdown
Rotational Efficiency
High-quality steel bearings deliver smooth, low-friction power transfer for road riders.
Weight Optimization
Press-fit architecture keeps the drivetrain light without sacrificing necessary structural stiffness.
Weather Resistance
Contact seals effectively block grit and moisture from compromising internal components.
Installation Complexity
Requires specific press-fit tools and careful alignment for a proper installation.
Serviceability
Sealed cartridge design prioritizes replacement over maintenance when bearings eventually wear.
Compatibility Range
Perfectly tailored for Hollowtech II cranks but limited to specific frame standards.
Key Specs
Model Number
ISMBB7241B
Bottom Bracket Standard
BB86
Shell Diameter
41.0 mm
Shell Width
86.5 mm
Spindle Diameter
24.0 mm
Spindle Interface
Shimano Hollowtech II
Bearing Material
Steel
Sealing Type
Contact Seals
Intended Use
Road Cycling
Tool Interface
Press Fit Tool
Know before you buy
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Ask Metto anything about the Shimano Ultegra BB72-41B Bottom Bracket before you decide.
