Crown gear ratchet kit for Syntace HiTorque MX / M Rear 12 hub.

Includes:
- 36T engagement inner and outer crown gears and required springs.
 
Variants:
- for internals with red spacer sleeve ( 13,7 mm ) for HiTorque MX / M
- for internals with bronze color spacer sleeve ( 15,2 mm ) for HiTorque Straight MX / M