The BB-R9100 Dura-Ace Bottom Bracket is engineered for high-performance cycling, offering seamless power transfer and durability. Designed for competitive cyclists, it ensures a smooth and efficient ride with minimal friction. Its lightweight construction and advanced sealing technology make it a top choice for those seeking reliability and speed.

Specifications:
- Type: Threaded bottom bracket
- Compatibility: Shimano Dura-Ace R9100 series
- Weight: Approximately 65 grams
- Material: Aluminum cups with steel bearings
- Sealing: Advanced sealing for improved protection against dirt and moisture
- Shell Width: 68mm (English) / 70mm (Italian)
- Bearing Type: Sealed cartridge bearings
- Color: Black