I don't carry a disk on the top of my head
I *think* the TDI 130's have the same fit as the 150's, 288mm disks and FN3 calipers. They won't be 312mm as standard. An easy upgrade to 312 though, by changing the caliper carrier and fitting the larger disks.
An easy way to tell is to look at the calipers and see if they are attached directly to the hub, or if there is a separate carrier bolted to the hub, to which the calipers are then attached. If there is no separate carrier, then you have FS-III calipers and 256mm disks.