Rotor BSA Bottom Bracket to BB386 Steel
This 30mm external Rotor BSA bearing is the option you need so you can use BB386 cranks in your standard threaded frame.
Features
- Steel bearings
- New advanced non-contact Labyrinth seals give buttery smooth spinning with unparalleled protection against dust, water and mud
- Road version
- Manufacturer's claimed weight: 90 grams
- BB30 spanner included