00 General Trailer loads Permissible trailer load kg Trailer Trailer unbraked braked not continuous brake system kg Trailer braked continuous brake system kg Vehicle Model Sales Version Speed designation restriction kg 421.124 .125 U 52 Standard - 1250 8000 13200 421.140 .141 U600 macc. with EEC 1425 8000 13100 421.124 .125 U 52 With heavy attachments four-wheel drive 20 1250 8000 12540 421.140 .141 U 600 40 1425 8000 12450 421.124 .125 U 52 With heavy snow clearing attachments four-wheel drive 30 None None None 40 421.140 .141 U600