Model wise CU50 Characteristics view & Applicability

Hi

I would like know for characteristics values to be populated for particular model and not for the same.

For example :

Class - >BIKE

Characteristics

1.Bike Mode - Trekking , Mountain

2.Frame size - 21,30

Material Master - Header is created for Two materials for same class - Material 1 & Material 2, Material 3

CU50 condition :I need only for Material 1 system should propose for Trekking as frame size 21 and for other Material 2 , Material 3 user can select.

As Class & Characteristics are common across models.

I checked with local & global dependencies for all models this conditions,can system restrict for Material 1.?

Regards

Vignesh V