Shimano UN26 Bottom Bracket – Reliable, Smooth, and Built for MTB Durability

The Shimano UN26 Cartridge Bottom Bracket is designed to deliver smooth pedaling performance and long-lasting reliability for mountain bikes and hybrid bikes using square-taper cranks. Featuring Shimano’s trusted sealed cartridge system, the UN26 ensures consistent rotation and protection from dirt and moisture, making it ideal for everyday riding and off-road adventures.

Key Features

• Smooth Rotation: High-quality sealed bearings provide reliable and efficient pedaling.

• Square-Taper Compatibility: Designed for use with square-type cranksets.

• Sealed Cartridge Design: Keeps out dirt and water for long service life with minimal maintenance.

• Durable Construction: Shimano’s precision engineering ensures long-term performance.

• Easy Installation: Standard design fits most MTB and trekking frames with BSA threading.

Technical Specifications

SpecificationDetailModelShimano UN26TypeSealed Cartridge Bottom BracketAxle TypeSquare Taper (JIS)Shell TypeBSA (English Threaded)Shell Width68 mm / 73 mmAxle Length Options110 mm / 113 mm / 118 mm / 122.5 mmApplicationMTB / Trekking / HybridColorSilver / BlackWeightApprox. 300 g

Why Choose the Shimano UN26

• Dependable performance for all-terrain riding.

• Low-maintenance sealed bearings keep your drivetrain smooth.

• Perfect upgrade or replacement for older square-taper setups.

• Trusted Shimano quality at an affordable price.

The Shimano UN26 Cartridge Bottom Bracket offers a simple, proven solution for riders seeking smooth pedaling and long-lasting reliability — a perfect match for MTB and hybrid bikes using square-type cranksets.