SHIMANO 105 BB-5500 Bottom Bracket - Italian 70 x 109.5mm Octalink V1 Spindle in

, corrosion-resistant steel construction ensures durability and long-lasting performance for everyday cycling and tough terrains. Advanced Octalink V1 spline technology provides a secure, precise fit with compatible cranksets like FC-7700, FC-6500, and FC-5500 series, optimizing power transfer and pedal efficiency. Designed for 70x109.5mm Italian (ITA) bottom bracket shells, this bottom bracket offers easy installation and compatibility with high-performance road and cyclocross bikes. Sleek silver finish and durable materials combine style with functional performance, making it an essential upgrade for cyclists seeking reliable component engineering. Features precision-engineered components that enhance smooth bearing operation and efficient load distribution, reducing maintenance needs and extending component lifespan.