Dura Ace bottom bracket with matching axle length for 2-speed chainrings. Available for BSA thread or Italian thread. Octalink axle profile!
Octalink Oversize bottom bracket axle
The large, hollow-rolled 22mm axle of the bottom bracket saves weight. The multi-tooth mount provides a tighter and more durable fit. Less axle bending due to composite bearing with balls and needles. Aluminum bottom bracket adapter
Suitable crankset e.g. Shimano Dura Ace 2x9 FC-7701.
| Weight: | 173g |
| Activity: | Cycling |
| Item code: | SHI100120 |
| Model year: | 2023 |
| Axle length: | 109.5mm |
| Manufacturer: | Shimano Parts |
| Product name: | Shimano Dura Ace BB-7700 Bottom Bracket |
| Usage bikesport: | Road Bike |
| Manufacturer page: | http://www.shimano-europe.com/ |
| Manufacturer item code: | BB-7700 |
| Bottom bracket case width: | 68mm, 70mm |
| Bottom bracket axle profile: | Octalink |
| Bottom bracket construction: | Cartridge Bottom Bracket |
