Shimano BB-RS500 Bottom Bracket Cups

The Shimano BB-RS500 Bottom Bracket Cups is an Outboard Bottom bracket bearing cups for use with 2-piece cap-free design road chainsets. Minimal bearing interface gives superbly smooth rolling; this bottom bracket spare is easy to install. Available in British thread or Italian thread.Shimano BB-RS500 Bottom Bracket Cups FeaturesOutboard Bottom bracket bearing cups for use with 2-piece cap-free design road chainsetsMinimal bearing interface gives superbly smooth rollingEasy installationBritish thread