Shimano Alivio BB-ES300 Hollow Type Bottom Bracket 73 x 118mm

The Shimano Alivio BB-ES300 bottom bracket is designed for optimal quality and performance. It features an Octalink square taper mount to ensure ultra-efficient power transfer. This bottom bracket is compatible with frames that have a BSA thread and a 73mm shell width. Additionally, it includes a stabilizer to maintain a consistent chain line.