Max trailer weight for a 110 750kg (unbraked trlr) trailers with overrun brakes 3500kgs, trailers with fully coupled brakes 4000kgs.
Max trlr nose weight 150kgs Max gross weight for vehicle & trlr combined = 6550kg irrespective of brake systems involved.
All these figures refer to on road use, lower limits should be applied for "off road" use. All these figures are direct from the user H/book for a 110. Hope this info helps.