Shimano Shimano BB-UN55 Square Taper Bottom Bracket 68mm x 113mm

Information

The Shimano BB-UN55 bottom bracket is built for 68mm shell frames and features a 113mm spindle. Its square taper design and sealed cartridge construction ensure smooth performance and reliable power transfer, making it ideal for both road and mountain bikes. This bottom bracket is designed for long-lasting use with minimal maintenance.

• Compatible with 68mm bottom bracket shells
• 113mm spindle for square taper cranksets
• Sealed cartridge for smooth and low-maintenance operation
• Durable construction for long-term use
• Perfect for road and mountain bikes