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
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