They both worked on my bx25 but are taller an 3pt hitch pins are higher then the subcompact models so it won't lift up as high for clearance. A real pain loading the machine onto a trailer with steep ramps. An also coming off or going up a steep hill Tiller always bottoms out on the ground. I had to switch to the sub compact country line 48" instead of the regular model cause of ground clearance.will a tractor supply 48" tiller be a problem on a bx if it isnt the model designed for subcompact?