Ducati Sporting Club UK > Model Specific - Discussion, Technical Problems and Help > 851 / 888 > Disc Thickness

[nelly]

Andy, check the carrier itself for the wear limit.
5mm discs usually have 4.5mm limit and the 4.5mm usually have a 4mm limit.
It's the original disc thickness that makes the difference when supplying new bobbins.

Double check first, but 4mm may be down to the limit