Casati bicycles use center lock, external serration, front 160 mm, rear 140 mm
Shimano RT-MT800 rotor / hub requirement
center lock specific rotor for Shimano center lock spline mount
6-bolt standard
lockring type
internal-serration (more used for QR hubs)
external-serration lockring (more used for thru axle hubs)
summary
The RT-MT800 rotor only works with wheels designed for the Center-Lock disc mount system or 6 bolt lock. And you must select the appropriate internal or external lockring version based on your specific hub's axle type and clearance.
