Offering an excellent quality/performance ratio, the Euro PROMAX EX-1 external bottom bracket features sealed bearings for friction-free, watertight pedaling. It features CNC-machined aluminum cups for a better fit inside the bottom bracket. It is suitable only for frames with internally threaded bottom brackets designed to accept Euro BSA/BSC-type bottom brackets.
CHARACTERISTICS:
- Type: external Euro
- Housing diameter: 34.5mm
- Axle diameter: 24mm
- Threading: BSA/BSC
- Width: 68/73mm
- Aluminium cups 6061-T6 CNC machined
- Sealed bearings
- Weight: 103g
- Sold with 3 spacers
COMPATIBILITY:
- For frames with Euro BSA/BSC bottom bracket
- For bottom brackets with 24mm axle