Keeping things running smoothly down south we bring you the Rotar bottom bracket, a very clean and simple BB system with high quality bearings and CNC machined 6061 – T6 Aluminum spacers. It comes in 19mm, and 22 mm sizes.

Compatible with Sierra 18" frames, 18" and 16" inches Fly bikes, and old Fly frames like Pantera, Tierra, 3 Amigos,...

- 3mm washer included for adjustability
- Secure payments.