Description
A replacement driver, and 437-Z sprag clutch for Ultra BMX 110x15mm thru-bolt rear hub.
- Two options for the driver:
- Used one, ridden for one season. Very good condition.
- A new one with an estimated lead time of 7-8 weeks.
- 437-Z sprag clutch
- A pack of Kluber IsoFlex LDS 18 Special A grease for assembly, and future service needs.
