ROTOR's BSA 30 Bottom Bracket is the solution to your quest to pair a modern, 30mm axle for your favorite English-threaded frameset. This BSA 30 was designed for both 68mm and 73mm shell widths. Manufactured with a CNC-machined alloy body, this threaded bottom bracket utilizes steel bearings for a long life of smooth riding with protective seals adding a dose of confident protection.
A bottom bracket for BSA threaded shells
- Durable steel bearings roll smoothly
- Silicone seals keep dirt and grime out of the bearings
- Compatible with 30mm axles
- Works with both 68mm and 73mm shell widths