I bought the 48” County Line (Tractor Supply Brand) tiller for my bx23s and it works well but its really not ideal at least for my tractor due to its design, the pto shaft must be cut very short, and you cant raise it all the way without the front pto ujoint rubbing on that plate for the 3 point hitch assembly. Its also so heavy that if you take theFEL off you must have several hundred pounds of ballast unless you like doing wheelies. The BX has no problem picking it up though (its almost 600 lbs.). Also tills well.
I found out too late that countyline does not recomend this tiller for the bx, they have a another one that has thinner metal and possibly a lighter duty drive train (chain driven?) i really think i need the gear drive veraion with clutch given the amount of rocks im dealing with on virgin land.