Skid steer tracks for Thomas model S/S1200, Thomas model 1300 and Thomas model 2250 with 10"x16.5" tires.
If you have a 12"x16.5" tire size, please measure your tread width. If your tread width is 11 1/4" or larger, you willl need a T-1200"B" series. If your tread width is under 11 1/8", you will need a T-1200"N" series.
These Thomas models MAY require the 6 lug (SP-BLACK6) wheel spacers, please verify with the Track Clearance Guide to determine if you need spacers for your machine.