I can only comment on the
BX23 and it has the folding ROPS.
My guess is Kubota made the ROPS higher which then required it to be foldable for a couple reasons on the
BX23.
Higher because when one flips the seat around for BH operation, it raises it a few inches higher than in the driving position, which is directly under the ROPS. Thing is, one would have to be well over 7' tall before ones head would get anywhere near to hitting it. They're making sure theres [lenty of clearance IMHO.
Foldable to enable the tractor to fit through std garage doors. At 80 some odd inches, the ROPS on the
BX23 wouldn't fit into most all residential garages.
I've seen pics of the
BX2230 w/a Woods BH and it had the std non-folding ROPS on it. Since the Woods has an additional seat for the BH and it is outboard from the tractor & ROPS, there is no clearance issues with it.
IMHO, the folding ROPS is only necessary when the tractor is too tall to clear std garage door opennings and if one doesn't forsee adding implements or modifaications to the tractor that raises it up to where it won't clear then I don;t think theres any added advantage to having one.
Volfandt