Shimano BB UN300 Tapered Bottom Bracket British Thread

This product is a bottom bracket designed for traditional chainsets, featuring precise design for secure assembly and reliable performance during service, upgrades, or exchanges. Its tear-resistant construction supports regular cycling and varying road conditions, and its technical compatibility facilitates integration with appropriate driveline, brake system, or cockpit solutions. The material supports stable power transmission and control, while the replacement profile suits workshop and home maintenance to keep equipment in good condition.

Features

• Precise design supports secure assembly and helps maintain functionality during service.
• Tear-resistant construction for regular cycling and varying road conditions.
• Technical compatibility with driveline, brake system, or cockpit solution.
• Stable material contributes to consistent power transmission and control.
• Replacement profile suitable for workshop and home mechanics

Technical specifications

• Bottom bracket for traditional chainsets.
• Bearings for smooth operation and durability.
• Sealed cartridge bottom bracket with square tapered spindle.
• Maintenance-free sealed bearing assembly keeps out dirt and water.
• Fast and easy installation without adjustment.
• Narrow body allows cable routing clearance