Superior sealing, ultra-tight manufacturing tolerances and quality bearings combine to make a bottom bracket that rolls freely and never develops play.
Bottom bracket cups for Shimano Ultegra FC-6800 Hollowtech II cranksets.
- Actual weight 76 grams
- Compatible with all Shimano Hollowtech II road cranks
- Advanced sealing technology reduces friction by 50%
- English thread
- Made in Japan