Shimano Dura-Ace R9100 Bottom Bracket
Best high performance component for serious road cyclists.
A high-performance bottom bracket designed for precision and durability. It ensures smooth power transfer and reliable operation for demanding road cyclists.
$33.95
at
Eurobikeparts
More Dura-Ace options
Who it's for
- Serious cyclists seeking reliable, long-lasting performance from their drivetrain.
- Performance-oriented riders prioritizing maximum efficiency and a fluid pedal stroke.
- Competitive riders and enthusiasts who value consistent, trouble-free component function.
Who should skip it
- Cyclists on a budget or those not requiring professional-grade components.
- Riders with non-Shimano or older cranksets, or frames with different BB standards.
- Home mechanics without the correct tools, or those preferring universal compatibility.
Performance breakdown
Power Transfer Efficiency
Rigid construction ensures every watt translates directly to forward motion.
Bearing Smoothness
Industry-leading tolerances provide a buttery, friction-free pedaling experience.
Weather Sealing
Advanced contact seals effectively block grit and moisture from internal components.
Installation Precision
Italian threading offers a secure, reliable fit for compatible frames.
Component Longevity
Durable steel bearings withstand high-mileage abuse without premature degradation.
Maintenance Accessibility
Sealed cartridge design prioritizes replacement over complex internal servicing.
Key Specs
Bottom Bracket Standard
Italian Threaded
Shell Width
70 mm
Spindle Diameter
24 mm
Spindle Interface
Shimano Hollowtech II
Bearing Material
Steel
Sealing Type
Contact Seals
Intended Use
Road Cycling
Water Resistant
Yes
Serviceable Bearings
No
Ceramic Bearings
No
Know before you buy
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