Shimano Bottom Bracket UN300 Square 68-115 BSA

Name: Buy the Shimano Bottom Bracket UN300 Square 68-115 BSA | Fatdaddy Europe
SKU: 4550170619183
Price: 18 EUR
Availability: InStock

Precision-engineered square taper design boosts your pedaling efficiency and durability, powered by Shimano’s trusted BB-UN300 tech

€18

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Unleash Seamless Power Transfer with Precision Engineering.

Struggling with inefficient pedaling and unreliable crank performance? The Shimano UN300 square taper bottom bracket delivers rock-solid stability and smooth rotation for your e-mobility ride. Designed to eliminate creaks and wobble, it ensures maximum energy transfer and long-lasting durability on every journey.

Key Features

Robust square taper interface for secure crank attachment.
Precision sealed cartridge bearings for smooth, low-maintenance operation.
Standard 68mm shell width fits most BSA frames effortlessly.
115mm spindle length optimized for balanced crank clearance.
Corrosion-resistant materials built to withstand urban and off-road conditions.
Easy installation and replacement with Shimano’s trusted BB-UN300 design.

Technical Specifications

Model: Shimano BB-UN300
Type: Square taper bottom bracket
Shell Width: 68mm
Spindle Length: 115mm
Threading: BSA (English) 1.37″ x 24 TPI
Bearings: Sealed cartridge
Compatibility: Designed for square taper cranksets
Weight: Approximately 300 grams

Frequently Asked Questions

What frame types are compatible with the Shimano UN300 bottom bracket?

The Shimano UN300 is compatible with all standard BSA threaded frames with a 68mm shell width, making it ideal for most road and e-bike frames.

How often should I service or replace this bottom bracket?

Thanks to its sealed cartridge design, the UN300 requires minimal maintenance and typically lasts several years under normal riding conditions before replacement is needed.