Outboard Shimano Tiagra bottom bracket cups for use with 2-piece (cap free) road chainsets.

• Minimal bearing interface gives superbly smooth rolling
• Easy installation
• Bottom Bracket Type: Threaded
• Bottom Bracket: Shimano Hollowtech
• Commuter: Yes
• Touring: Yes
• Cyclocross: Yes
• Time Trial: Yes
• Road: Yes