The Shimano BB-UN300 Bottom Bracket is a simple and reliable square axle bottom bracket designed for smooth and efficient pedaling performance. This bottom bracket is a replacement for both the BB-UN26 and BB-UN55 models, offering a sealed cartridge bearing system for durability and longevity.
Key Features:
- Square Axle Design: Ensures compatibility with a wide range of cranksets and provides a reliable interface for efficient power transfer.
- Sealed Cartridge Bearing: Offers smooth rotation and protection against contaminants for extended lifespan.
- Thread Type: English threading for easy installation and compatibility with a variety of frames.
- Width Options: Available in 68mm or 73mm widths to suit different frame specifications.
- Stainless Steel Bearings: Provides durability and corrosion resistance for consistent performance.
- Color: Silver finish for a classic and versatile look.
Who is it for?
The Shimano BB-UN300 Bottom Bracket is ideal for cyclists looking for a dependable and straightforward bottom bracket solution that offers smooth pedaling performance.
Specifications
Mounting Position
Compatibility
Weight
Material
Torque Setting
Biodegradable
Bottom Bracket
Compatible Chains
Lubricant Type
Length
Volume
Manufacturer Warranty
Manual
Cage Length
Total Capacity
Low Sprocket Max
Shifting Actuation
Speed
Number of Chainrings
Top Sprocket Min
What's Included
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